Title: £453 Cheap Flights from Perth to Seattle (PER to SEA) - Expedia.co.uk ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £453 Cheap Flights from Perth (PER) to Seattle (SEA) [View £453 flight on Thu, 19 Mar 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:PER,to:SEA,departure:19/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:452.40&airProductToken=AQpTCigI0KQBEgMyMjQYj4kBIKxbKKj_hwMwx4KIAzhUQABYAXIGVExPQkFVCicI0KQBEgMxMjQYrFsgkgEo8IWIAzDAi4gDOFRAAVgBcgZUTE9CQVUSCggBEAEYASoCUFIYASIECAEQASgCKAMoBDAB) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Perth Airport (PER) to Seattle-Tacoma International Airport (SEA) - ![Qantas Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QF.svg) Qantas Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QF"}}]) - ![Emirates](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EK.svg) Emirates [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EK"}}]) - ![Qatar Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![Cathay Pacific](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CX.svg) Cathay Pacific [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Virgin Australia](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_VA.svg) Virgin Australia [](https://www.expedia.co.uk/Flights-Search?leg1=from:per,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:per,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VA"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Perth (PER) to Seattle (SEA) Prices were available within the past 7 days and start at £453 for one-way flights and £792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Jetstar](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JQ.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £792 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:791.70&airProductToken=AQqZAQoxCMqiARIDOTY1GI-JASChIyiuqYUDMLyrhQM4SUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2thQMwobSFAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASietYUDMNu1hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqZAQoyCMGGARIEODgxMRiSASC4jQEo8J-GAzCzoIYDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjMzGLiNASCSHiiQoYYDMMuohgM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoxCNaCARIDNTU3GJIeII-JASj1qYYDMKashgM4U0ABWAFqBUJBU0lDcghHTFhPMDJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Virgin Australia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VA.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £793 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:792.60&airProductToken=AQqZAQoxCNaCARIDNTcwGI-JASCSHiifqYUDMJ6rhQM4U0AAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzQYkh4guI0BKNSthQMwurSFAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASietYUDMNu1hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqZAQoyCMGGARIEODgxMRiSASC4jQEo8J-GAzCzoIYDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM1GLiNASChIyjboYYDMNWohgM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoxCNaCARIDNDY2GKEjII-JASi2qoYDMPushgM4U0ABWAFqBUJBU0lDcghHTFhPMDJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Jetstar](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JQ.gif) Tue, 4 Nov - Tue, 11 Nov PER Perth SEA Seattle £795 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:04/11/2025TANYT&leg2=from:SEA,to:PER,departure:11/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:794.30&airProductToken=AQqZAQoxCMqiARIDOTY1GI-JASChIyiul_wCMLyZ_AI4SUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2b_AIwoaL8AjhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASieo_wCMNuj_AI4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqZAQoyCMGGARIEODgxMRiSASC4jQEokOz8AjDT7PwCOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM1GLiNASChIyj77fwCMPX0_AI4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoxCNaCARIDNDY2GKEjII-JASjW9vwCMJv5_AI4U0ABWAFqBUJBU0lDcghHTFhPMDJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Jetstar](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JQ.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £796 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:795.20&airProductToken=AQqZAQoxCMqiARIDOTY1GI-JASChIyiuqYUDMLyrhQM4SUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2thQMwobSFAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASietYUDMNu1hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqaAQoyCMGGARIEODgxMRiSASC4jQEo8J-GAzCzoIYDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjMzGLiNASCSHiiQoYYDMMuohgM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoyCMGGARIEMjczORiSHiCPiQEo9amGAzCmrIYDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkESCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £796 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:796.00&airProductToken=AQqaAQoyCMGGARIEMjczOBiPiQEgkh4on6mFAzCeq4UDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM0GJIeILiNASjUrYUDMLq0hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoyCMGGARIEODc5OBi4jQEgkgEonrWFAzDbtYUDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkEKmgEKMgjBhgESBDg4MTEYkgEguI0BKPCfhgMws6CGAzhHQABYAWoFQkFTSUNyCEdMWE8wMkJBCjAIwYYBEgIzMxi4jQEgkh4okKGGAzDLqIYDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkEKMgjBhgESBDI3MzkYkh4gj4kBKPWphgMwpqyGAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![Jetstar](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JQ.gif) Tue, 4 Nov - Tue, 11 Nov PER Perth SEA Seattle £798 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:04/11/2025TANYT&leg2=from:SEA,to:PER,departure:11/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:797.80&airProductToken=AQqZAQoxCMqiARIDOTY1GI-JASChIyiul_wCMLyZ_AI4SUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2b_AIwoaL8AjhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASieo_wCMNuj_AI4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqaAQoyCMGGARIEODgxMRiSASC4jQEokOz8AjDT7PwCOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM1GLiNASChIyj77fwCMPX0_AI4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoyCMGGARIEMjc0MhihIyCPiQEo1vb8AjCb-fwCOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkESCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Jetstar](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JQ.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £804 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:803.80&airProductToken=AQqZAQoxCMqiARIDOTY1GI-JASChIyiuqYUDMLyrhQM4SUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2thQMwobSFAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASietYUDMNu1hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqZAQoyCMGGARIEODgxMRiSASC4jQEo8J-GAzCzoIYDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM1GLiNASChIyjboYYDMNWohgM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoxCNGMARIDOTM5GKEjII-JASjMq4YDMIeuhgM4TkABWAFqBUJBU0lDcghHTFhPMDJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £805 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:804.60&airProductToken=AQqaAQoyCMGGARIEMjczOBiPiQEgkh4on6mFAzCeq4UDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjM0GJIeILiNASjUrYUDMLq0hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoyCMGGARIEODc5OBi4jQEgkgEonrWFAzDbtYUDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkEKmQEKMgjBhgESBDg4MTEYkgEguI0BKPCfhgMws6CGAzhHQABYAWoFQkFTSUNyCEdMWE8wMkJBCjAIwYYBEgIzNRi4jQEgoSMo26GGAzDVqIYDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkEKMQjRjAESAzkzORihIyCPiQEozKuGAzCHroYDOE5AAVgBagVCQVNJQ3IIR0xYTzAyQkESCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Qantas Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QF.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £809 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:808.10&airProductToken=AQqZAQoxCNGMARIDOTQyGI-JASChIyiQqYUDMJ6rhQM4UUAAWAFqBUJBU0lDcghHTFhPMDJCQQowCMGGARICMzYYoSMguI0BKO2thQMwobSFAzhHQAFYAWoFQkFTSUNyCEdMWE8wMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASietYUDMNu1hQM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQqaAQoyCMGGARIEODgxMRiSASC4jQEo8J-GAzCzoIYDOEdAAFgBagVCQVNJQ3IIR0xYTzAyQkEKMAjBhgESAjMzGLiNASCSHiiQoYYDMMuohgM4R0ABWAFqBUJBU0lDcghHTFhPMDJCQQoyCMGGARIEMjczORiSHiCPiQEo9amGAzCmrIYDOEdAAVgBagVCQVNJQ3IIR0xYTzAyQkESCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Singapore Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SQ.gif) Mon, 16 Feb - Thu, 26 Feb PER Perth SEA Seattle £967 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PER,to:SEA,departure:16/02/2026TANYT&leg2=from:SEA,to:PER,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:967.00&airProductToken=AQp0CjkI06IBEgMyMjQYj4kBIJJqKNChhQMwi6SFAzhLQABYAWoMRWNvbm9teSBMaXRlcglLMTZBVVJKUE8KNwjTogESAjI4GJJqIJIBKPythQMwzrSFAzhLQAFYAWoMRWNvbm9teSBMaXRlcglLMTZBVVJKUE8KdAo3CNOiARICMjcYkgEgkmoozZqGAzDJooYDOFZAAFgBagxFY29ub215IExpdGVyCVYxNkFVUkpQTwo5CNOiARIDMjEzGJJqII-JASj4qIYDMLOrhgM4VkABWAFqDEVjb25vbXkgTGl0ZXIJVjE2QVVSSlBPEgoIAhABGAEqAlNRGAEiBAgBEAEoAigDKAQwDw) ## Find the cheapest month to fly from Perth (PER) to Seattle (SEA) ### September is typically the cheapest month to fly From £698 - £1,643 per traveller. Flight from Perth to Seattle route information | Origin airport | Perth | | --- | --- | | Destination airport | Seattle - Tacoma Intl. | | Return price | £792 | | Distance | 14785 km | ## Compare flights from Perth to Seattle easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Perth to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Perth to Seattle - Tacoma Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Perth (PER) to Seattle - Tacoma Intl. (SEA) The easiest way to view the best deals on flights from Perth to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Perth to Seattle - Tacoma Intl. start at just £792 and range up to £967.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Perth and Seattle - booking your flight during February, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Perth to Seattle flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Perth to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Perth Airport to SEA? > If you're planning on travelling between Perth Airport and Sea-Tac Airport, round-trip journeys start from £792. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from PER to Seattle - Tacoma Intl. Airport (SEA)? > This can vary from airline to airline, as each has its own set of terms and conditions. Head to the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where there are instructions on how to cancel online. ### How do I find cheap flights from Perth Airport (PER) to Sea-Tac Airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PER to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from PER to SEA? > With a flight distance of 14,900 kilometres from Perth Airport (PER) to Sea-Tac Airport (SEA), this is a long journey. Remember to drink plenty of water and go for a short walk down the aisle from time to time. ### Which airlines fly direct from Perth Airport (PER) to Sea-Tac Airport? > At the moment, no airlines offer flights directly from PER to Seattle - Tacoma Intl. Airport (SEA). You'll have to book a flight with one or more stops. To score the best price and connections, lock in your fare well ahead of time. ### Are Perth Airport to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Perth Airport to Sea-Tac Airport last minute could be your ticket to an awesome deal. However, it could end up costing a good deal more! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Related Airlines - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Perth - [Perth to Auckland (PER - AKL)](https://expedia.co.uk/lp/flights/per/akl/perth-to-auckland) - [Perth to Bangkok (PER - BKK)](https://expedia.co.uk/lp/flights/per/bkk/perth-to-bangkok) - [Perth to London (PER - LCY)](https://expedia.co.uk/lp/flights/per/lcy/perth-to-london) - [Perth to Kuala Lumpur (PER - KUL)](https://expedia.co.uk/lp/flights/per/kul/perth-to-kuala-lumpur) - [Perth to Denpasar (PER - DPS)](https://expedia.co.uk/lp/flights/per/dps/perth-to-denpasar) - [Perth to Adelaide (PER - ADL)](https://expedia.co.uk/lp/flights/per/adl/perth-to-adelaide) - [Perth to Edinburgh (PER - EDI)](https://expedia.co.uk/lp/flights/per/edi/perth-to-edinburgh) - [Perth to London (PER - STN)](https://expedia.co.uk/lp/flights/per/stn/perth-to-london) - [Perth to Phuket (PER - HKT)](https://expedia.co.uk/lp/flights/per/hkt/perth-to-phuket) - [Perth to Tokyo (PER - NRT)](https://expedia.co.uk/lp/flights/per/nrt/perth-to-tokyo) - [Perth to Birmingham (PER - BHX)](https://expedia.co.uk/lp/flights/per/bhx/perth-to-birmingham) - [Perth to Melbourne (PER - MEL)](https://expedia.co.uk/lp/flights/per/mel/perth-to-melbourne) ### Top Routes to Seattle - [Newark Liberty Intl. Airport to Seattle (EWR - SEA)](https://expedia.co.uk/lp/flights/ewr/sea/newark-liberty-intl-airport-to-seattle) - [Los Angeles to Seattle (LAX - SEA)](https://expedia.co.uk/lp/flights/lax/sea/los-angeles-to-seattle) - [Bristol to Seattle (BRS - SEA)](https://expedia.co.uk/lp/flights/brs/sea/bristol-to-seattle) - [London to Seattle (LCY - SEA)](https://expedia.co.uk/lp/flights/lcy/sea/london-to-seattle) - [Boston to Seattle (BOS - SEA)](https://expedia.co.uk/lp/flights/bos/sea/boston-to-seattle) - [New York to Seattle (LGA - SEA)](https://expedia.co.uk/lp/flights/lga/sea/new-york-to-seattle) - [Leeds to Seattle (LBA - SEA)](https://expedia.co.uk/lp/flights/lba/sea/leeds-to-seattle) - [Edinburgh to Seattle (EDI - SEA)](https://expedia.co.uk/lp/flights/edi/sea/edinburgh-to-seattle) - [New York to Seattle (JFK - SEA)](https://expedia.co.uk/lp/flights/jfk/sea/new-york-to-seattle) - [Dublin to Seattle (DUB - SEA)](https://expedia.co.uk/lp/flights/dub/sea/dublin-to-seattle) - [Birmingham to Seattle (BHX - SEA)](https://expedia.co.uk/lp/flights/bhx/sea/birmingham-to-seattle) - [Baltimore to Seattle (BWI - SEA)](https://expedia.co.uk/lp/flights/bwi/sea/baltimore-to-seattle) ### Top Routes from Perth - [Emirates Perth to London](https://expedia.co.uk/lp/flight-routes/emirates-from-perth-to-stansted/ek/per/stn) - [British Airways Perth to London](https://expedia.co.uk/lp/flight-routes/british-airways-from-perth-to-heathrow/ba/per/lhr) - [Qantas Airways Perth to Brisbane](https://expedia.co.uk/lp/flight-routes/qantas-airways-from-perth-to-brisbane/qf/per/bne) ### Top Routes to Seattle - [KLM London to Seattle](https://expedia.co.uk/lp/flight-routes/klm-from-london-city-to-seattle-tacoma-intl/kl/lcy/sea) - [Alaska Airlines Boston to Seattle](https://expedia.co.uk/lp/flight-routes/alaska-airlines-from-logan-intl-to-seattle-tacoma-intl/as/bos/sea) - [Alaska Airlines New York to Seattle](https://expedia.co.uk/lp/flight-routes/alaska-airlines-from-john-f-kennedy-intl-to-seattle-tacoma-intl/as/jfk/sea) - [Aer Lingus Dublin to Seattle](https://expedia.co.uk/lp/flight-routes/aer-lingus-from-dublin-to-seattle-tacoma-intl/ei/dub/sea) - [British Airways Newcastle to Seattle](https://expedia.co.uk/lp/flight-routes/british-airways-from-newcastle-intl-to-seattle-tacoma-intl/ba/ncl/sea) ### Top Flight Destinations - [Flights to Las Vegas](https://expedia.co.uk/Cheap-Flights-To-Las-Vegas.d178276.Travel-Guide-Flights) - [Flights to New York](https://expedia.co.uk/Cheap-Flights-To-New-York.d178293.Travel-Guide-Flights) - [Flights to Orlando](https://expedia.co.uk/Cheap-Flights-To-Orlando.d178294.Travel-Guide-Flights) - [Flights to Chicago](https://expedia.co.uk/Cheap-Flights-To-Chicago.d178248.Travel-Guide-Flights) - [Flights to San Diego](https://expedia.co.uk/Cheap-Flights-To-San-Diego.d3073.Travel-Guide-Flights) - [Flights to San Francisco](https://expedia.co.uk/Cheap-Flights-To-San-Francisco.d178305.Travel-Guide-Flights) - [Flights to Los Angeles](https://expedia.co.uk/Cheap-Flights-To-Los-Angeles.d178280.Travel-Guide-Flights) - [Flights to Boston](https://expedia.co.uk/Cheap-Flights-To-Boston.d178239.Travel-Guide-Flights) - [Flights to Miami](https://expedia.co.uk/Cheap-Flights-To-Miami.d178286.Travel-Guide-Flights) - [Flights to Houston](https://expedia.co.uk/Cheap-Flights-To-Houston.d178265.Travel-Guide-Flights) - [Flights to Pigeon Forge](https://expedia.co.uk/Cheap-Flights-To-Pigeon-Forge.d8264.Travel-Guide-Flights) - [Flights to Nashville](https://expedia.co.uk/Cheap-Flights-To-Nashville.d178291.Travel-Guide-Flights) - [Flights to Myrtle Beach](https://expedia.co.uk/Cheap-Flights-To-Myrtle-Beach.d601685.Travel-Guide-Flights) - [Flights to Atlanta](https://expedia.co.uk/Cheap-Flights-To-Atlanta.d178232.Travel-Guide-Flights) - [Flights to San Antonio](https://expedia.co.uk/Cheap-Flights-To-San-Antonio.d178303.Travel-Guide-Flights) - [Flights to Denver](https://expedia.co.uk/Cheap-Flights-To-Denver.d178254.Travel-Guide-Flights) - [Flights to Honolulu](https://expedia.co.uk/Cheap-Flights-To-Honolulu.d1488.Travel-Guide-Flights) - [Flights to Gatlinburg](https://expedia.co.uk/Cheap-Flights-To-Gatlinburg.d7474.Travel-Guide-Flights) - [Flights to Panama City Beach](https://expedia.co.uk/Cheap-Flights-To-Panama-City-Beach.d8021.Travel-Guide-Flights) - [Flights to Atlantic City](https://expedia.co.uk/Cheap-Flights-To-Atlantic-City.d602179.Travel-Guide-Flights) ### Related Airlines - [Qatar Airways](https://expedia.co.uk/Qatar-Airways-Flights.cQR.Travel-Guide-Airlines) - [Emirates](https://expedia.co.uk/Emirates-Flights.cEK.Travel-Guide-Airlines) - [Singapore Airlines](https://expedia.co.uk/Singapore-Airlines-Flights.cSQ.Travel-Guide-Airlines) - [British Airways](https://expedia.co.uk/British-Airways-Flights.cBA.Travel-Guide-Airlines) - [Qantas Airways](https://expedia.co.uk/Qantas-Airways-Flights.cQF.Travel-Guide-Airlines) - [Cathay Pacific](https://expedia.co.uk/Cathay-Pacific-Flights.cCX.Travel-Guide-Airlines) - [Malaysia Airlines](https://expedia.co.uk/Malaysia-Airlines-Flights.cMH.Travel-Guide-Airlines) - [Turkish Airlines](https://expedia.co.uk/Turkish-Airlines-Flights.cTK.Travel-Guide-Airlines) - [Thai Airways International](https://expedia.co.uk/Thai-Airways-International-Flights.cTG.Travel-Guide-Airlines) - [Air France](https://expedia.co.uk/Air-France-Flights.cAF.Travel-Guide-Airlines) - [Finnair](https://expedia.co.uk/Finnair-Flights.cAY.Travel-Guide-Airlines) - [KLM](https://expedia.co.uk/KLM-Flights.cKL.Travel-Guide-Airlines) - [Etihad Airways](https://expedia.co.uk/Etihad-Airways-Flights.cEY.Travel-Guide-Airlines) - [Virgin Australia](https://expedia.co.uk/Virgin-Australia-Flights.cVA.Travel-Guide-Airlines) - [Scoot](https://expedia.co.uk/Scoot-Flights.cTR.Travel-Guide-Airlines) - [Lufthansa](https://expedia.co.uk/Lufthansa-Flights.cLH.Travel-Guide-Airlines) ### Nearby Airports - [Margaret River Airport (BQB)](https://expedia.co.uk/lp/airports/bqb/flights-from-margaret-river-airport) ### Expedia's Latest Trends Flights - [Flights from London to Boston](https://expedia.co.uk/lp/flights/lhr/bos/london-to-boston) - [Flights from London to Cincinnati](https://expedia.co.uk/lp/flights/lhr/cvg/london-to-cincinnati) - [Flights from London to Seattle](https://expedia.co.uk/lp/flights/lhr/sea/london-to-seattle) - [Flights from Boston to London](https://expedia.co.uk/lp/flights/bos/lhr/boston-to-london) - [Flights from Las Vegas to London](https://expedia.co.uk/lp/flights/las/lhr/las-vegas-to-london) - [Flights from London to Anchorage](https://expedia.co.uk/lp/flights/lhr/anc/london-to-anchorage) - [Flights from London to Philadelphia](https://expedia.co.uk/lp/flights/lhr/phl/london-to-philadelphia) - [Flights from London to Columbus](https://expedia.co.uk/lp/flights/lhr/cmh/london-to-columbus) - [Flights from Manchester to Boston](https://expedia.co.uk/lp/flights/man/bos/manchester-to-boston) - [Flights from Las Vegas to Los Angeles](https://expedia.co.uk/lp/flights/las/lax/las-vegas-to-los-angeles) - [Flights from London to Fort Lauderdale](https://expedia.co.uk/lp/flights/lhr/fll/london-to-fort-lauderdale) - [Flights from London to New York](https://expedia.co.uk/lp/flights/lon/nyc/london-to-new-york) - [Flights from Las Vegas to San Francisco](https://expedia.co.uk/lp/flights/las/sfo/las-vegas-to-san-francisco) - [Flights from London to Cleveland](https://expedia.co.uk/lp/flights/lhr/cle/london-to-cleveland) - [Flights from London to Pittsburgh](https://expedia.co.uk/lp/flights/lhr/pit/london-to-pittsburgh) - [Flights from Toronto to New York](https://expedia.co.uk/lp/flights/yyz/nyc/toronto-to-new-york) - [Flights from Edinburgh to Boston](https://expedia.co.uk/lp/flights/edi/bos/edinburgh-to-boston) - [Flights from Manchester to Las Vegas](https://expedia.co.uk/lp/flights/man/las/manchester-to-las-vegas) - [Flights from Los Angeles to Las Vegas](https://expedia.co.uk/lp/flights/lax/las/los-angeles-to-las-vegas) - [Flights from Dallas to London](https://expedia.co.uk/lp/flights/dfw/lhr/dallas-to-london) - [Flights from Manchester to Dallas](https://expedia.co.uk/lp/flights/man/dfw/manchester-to-dallas) - [Flights from San Francisco to Las Vegas](https://expedia.co.uk/lp/flights/sfo/las/san-francisco-to-las-vegas) - [Flights from New York to Las Vegas](https://expedia.co.uk/lp/flights/jfk/las/new-york-to-las-vegas) - [Flights from London to New York](https://expedia.co.uk/lp/flights/lhr/nyc/london-to-new-york) - [Flights from London to San Diego](https://expedia.co.uk/lp/flights/lhr/san/london-to-san-diego) - [Flights from Dublin to Las Vegas](https://expedia.co.uk/lp/flights/dub/las/dublin-to-las-vegas) - [Flights from Glasgow to Las Vegas](https://expedia.co.uk/lp/flights/gla/las/glasgow-to-las-vegas) - [Flights from London to Las Vegas](https://expedia.co.uk/lp/flights/lhr/las/london-to-las-vegas) - [Flights from Boston to New York](https://expedia.co.uk/lp/flights/bos/jfk/boston-to-new-york) - [Flights from London to Dallas](https://expedia.co.uk/lp/flights/lhr/dfw/london-to-dallas) \*Available to Expedia members. ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels when you book in the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. 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