Title: £332 Cheap Flights from Seoul to Philadelphia (ICN to PHL) - Expedia.co.uk ![Street view of downtown Philadelphia in PA, USA](https://images.trvl-media.com/place/178297/8334056d-4758-4753-ae85-5adcad811308.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178297/8334056d-4758-4753-ae85-5adcad811308.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £332 Cheap Flights from Seoul (ICN) to Philadelphia (PHL) [View £332 flight on Tue, 21 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:ICN,to:PHL,departure:21/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:331.40&airProductToken=AQptCjQIxJgBEgMxNzIYyGgg8hIooPeKAzDX_IoDOEVAAFgBaglNQUlOQkFTSUNyCFhMWDAwQkVECjUIxJgBEgQyMDc1GPISIO9ZKIqAiwMwh4KLAzhFQAFYAWoJTUFJTkJBU0lDcghYTFgwMEJFRBIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) - [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 Incheon Intl. Airport (ICN) to Philadelphia International Airport (PHL) - ![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:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Korean Air](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KE.svg) Korean Air [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KE"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![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:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Japan Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_JL.svg) Japan Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"JL"}}]) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:phl,departure:01/10/2025TANYT&leg2=from:phl,to:icn,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Seoul (ICN) to Philadelphia (PHL) Prices were available within the past 7 days and start at £332 for one-way flights and £523 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Asiana Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/oz.gif) Tue, 11 Nov - Tue, 25 Nov ICN Seoul PHL Philadelphia £523 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:11/11/2025TANYT&leg2=from:PHL,to:ICN,departure:25/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:522.90&airProductToken=AQpSCicIz7QBEgMyNzIYyGggkgEo0OT8AjCj6fwCOFZAAFgBcgZWTFhLVVoKJwjBpgESAzQ0MhiSASDvWSjX8vwCMJD1_AI4T0ABWAFyBlZMWEtVWgpSCicIwaYBEgMzNzAY71kgkgEomoL-AjCJhf4COFFAAFgBcgZWTFhLVVoKJwjPtAESAzI3MRiSASDIaCjKi_4CMKSR_gI4VkABWAFyBlZMWEtVWhIKCAEQARgBKgJPWhgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, 19 Jan - Wed, 18 Feb ICN Seoul PHL Philadelphia £529 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:19/01/2026TANYT&leg2=from:PHL,to:ICN,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:528.70&airProductToken=AQpXCioIwaYBEgQ4NDcyGMhoIJIBKNfsggMwqvGCAzhHQABYAXIIR0tGRTgwTUsKKQjBpgESAzQ0MhiSASDvWSjL-oIDMIf9ggM4UUABWAFyCEdLRkU4ME1LClcKKQjBpgESAzQ0MxjvWSCSASjnw4UDMNvGhQM4UUAAWAFyCEdLRkU4ME1LCioIwaYBEgQ4NDcxGJIBIMhoKJTOhQMw39OFAzhHQAFYAXIIR0tGRTgwTUsSCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Asiana Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/oz.gif) Tue, 11 Nov - Tue, 25 Nov ICN Seoul PHL Philadelphia £605 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:11/11/2025TANYT&leg2=from:PHL,to:ICN,departure:25/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:604.90&airProductToken=AQqIAQonCM-0ARIDMjIyGMhoIKlRKIDf_AIw1-X8AjhWQABYAXIGVkxYS1VaCi0IwmwSAzQxOBipUSDBkwEo5ef8AjCw6PwCOFBAAVgBagJBTnIIUEMyQVVFWTUKLgjCbBIEMTQ1ORjBkwEg71kooOr8AjCE6_wCOFBAAVgBagJBTnIIUEMyQVVFWTUKUgonCMGmARIDNDQzGO9ZIJIBKLaH_gIwpIr-AjhOQABYAXIGVkxYS1VaCicIz7QBEgMyNzEYkgEgyGgoyov-AjCkkf4COFZAAVgBcgZWTFhLVVoSCggBEAEYASoCT1oYASIECAEQASgCKAMoBDAB) ![Asiana Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/oz.gif) Tue, 11 Nov - Tue, 25 Nov ICN Seoul PHL Philadelphia £627 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:11/11/2025TANYT&leg2=from:PHL,to:ICN,departure:25/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:626.90&airProductToken=AQqHAQonCM-0ARIDMjIyGMhoIKlRKIDf_AIw1-X8AjhWQABYAXIGVkxYS1VaCi0IwmwSAzQxOBipUSDBkwEo5ef8AjCw6PwCOFBAAVgBagJBTnIIUEk0UVVFWTUKLQjCbBIDMzU5GMGTASDvWSjw7_wCMNHw_AI4UEABWAFqAkFOcghQSTlRQk9ZNQpSCicIwaYBEgM0NDMY71kgkgEotof-AjCkiv4COE5AAFgBcgZWTFhLVVoKJwjPtAESAzI3MRiSASDIaCjKi_4CMKSR_gI4VkABWAFyBlZMWEtVWhIKCAEQARgBKgJPWhgBIgQIARABKAIoAygEMAE) ![Asiana Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/oz.gif) Mon, 19 Jan - Wed, 18 Feb ICN Seoul PHL Philadelphia £647 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:19/01/2026TANYT&leg2=from:PHL,to:ICN,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:646.10&airProductToken=AQpSCicIz7QBEgMyNzIYyGggkgEo8OyCAzDD8YIDOFZAAFgBcgZWS1hLVVoKJwjBpgESAzQ0MhiSASDvWSjL-oIDMIf9ggM4UUABWAFyBlZLWEtVWgqIAQotCMJsEgM3NjAY71kgwZMBKPzChQMwzsOFAzhQQABYAWoCQU5yCFBDMkFVRVk1Ci4IwmwSBDEwMTcYwZMBIKlRKNrEhQMwrcWFAzhQQAFYAWoCQU5yCFBDMkFVRVk1CicIz7QBEgMyMjEYqVEgyGgoz8uFAzCK04UDOFZAAVgBcgZWS1hLVVoSCggBEAEYASoCT1oYASIECAEQASgCKAMoBDAB) ![Asiana Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/oz.gif) Tue, 11 Nov - Tue, 25 Nov ICN Seoul PHL Philadelphia £648 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:11/11/2025TANYT&leg2=from:PHL,to:ICN,departure:25/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:647.90&airProductToken=AQqIAQonCM-0ARIDMjIyGMhoIKlRKIDf_AIw1-X8AjhWQABYAXIGVkxYS1VaCi4IwmwSBDExMTgYqVEgwZMBKPLr_AIwwOz8AjhaQAFYAWoCQU5yCFpJN0FVRVk1Ci0IwmwSAzM1ORjBkwEg71ko8O_8AjDR8PwCOFBAAVgBagJBTnIIUEk5UUJPWTUKUgonCMGmARIDMzcwGO9ZIJIBKJqC_gIwiYX-AjhRQABYAXIGVkxYS1VaCicIz7QBEgMyNzEYkgEgyGgoyov-AjCkkf4COFZAAVgBcgZWTFhLVVoSCggBEAEYASoCT1oYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, 19 Jan - Wed, 18 Feb ICN Seoul PHL Philadelphia £678 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:19/01/2026TANYT&leg2=from:PHL,to:ICN,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:677.60&airProductToken=AQqhAQozCMGGARICNjQYyGgguI0BKPPrggMwwfCCAzhLQABYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjQIwYYBEgMzMTQYuI0BIJhdKNX1ggMwgPiCAzhLQAFYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjQIwYYBEgQ4ODU5GJhdIO9ZKIL7ggMw4_uCAzhLQAFYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCqEBCjQIwYYBEgQ4ODYyGO9ZIJhdKK7ChQMwjcOFAzhLQABYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjQIwYYBEgMzMDEYmF0guI0BKO7JhQMwx8yFAzhLQAFYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjMIwYYBEgI2Mxi4jQEgyGgoyc2FAzCK04UDOEtAAVgBaghTVEFOREFSRHIIS0tYVzAzVEcSCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, 19 Jan - Wed, 18 Feb ICN Seoul PHL Philadelphia £683 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:19/01/2026TANYT&leg2=from:PHL,to:ICN,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:682.50&airProductToken=AQqhAQozCMGGARICNjQYyGgguI0BKPPrggMwwfCCAzhLQABYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjQIwYYBEgMzMDgYuI0BIJhdKJvxggMwuPOCAzhLQAFYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCjQIwYYBEgQ4ODU5GJhdIO9ZKIL7ggMw4_uCAzhLQAFYAWoIU1RBTkRBUkRyCEtLWFcwM1RHCqMBCjUIwYYBEgQ4OTMxGO9ZIJjOASi8v4UDMJzAhQM4S0AAWAFqCFNUQU5EQVJEcghLS1hXMDNURwo1CMGGARIDMTI3GJjOASC4jQEo18WFAzCSyIUDOEtAAVgBaghTVEFOREFSRHIIS0tYVzAzVEcKMwjBhgESAjYzGLiNASDIaCjJzYUDMIrThQM4S0ABWAFqCFNUQU5EQVJEcghLS1hXMDNURxIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Korean Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/ke.gif) Mon, 19 Jan - Wed, 18 Feb ICN Seoul PHL Philadelphia £689 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:19/01/2026TANYT&leg2=from:PHL,to:ICN,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:688.70&airProductToken=AQpwCjUIy4oBEgI5MRjIaCDBkwEoqueCAzDU7YIDOFVAAFgBagpFWVNUQU5EQVJEcghVS1gwWkJZSwo3CMuKARIEMzMxNxjBkwEg71ko8_CCAzDY8YIDOFVAAVgBagpFWVNUQU5EQVJEcghVS1gwWkJZSwpuCjYIy4oBEgQzNzA0GO9ZIOBcKM7DhQMw3sSFAzhRQABYAWoKRVlTVEFOREFSRHIIUUtYMFpCWUsKNAjLigESAjM2GOBcIMhoKPfLhQMwrdOFAzhRQAFYAWoKRVlTVEFOREFSRHIIUUtYMFpCWUsSCggBEAEYASoCS0UYASIECAEQASgCKAMoBDAB) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Tue, 11 Nov - Tue, 25 Nov ICN Seoul PHL Philadelphia £1,455 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ICN,to:PHL,departure:11/11/2025TANYT&leg2=from:PHL,to:ICN,departure:25/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1454.30&airProductToken=AQprCjMI0aQBEgM4NTkYyGggwzso-Nr8AjDu3_wCOE5AAFgBaghFQ0xBU1NJQ3IITkxLUlIxUkUKNAjRpAESBDkwMDEYwzsg71kogur8AjDt8PwCOE5AAVgBaghFQ0xBU1NJQ3IITkxLUlIxUkUKawo0CNGkARIEOTAwMBjvWSDDOyj-h_4CMICO_gI4TkAAWAFqCEVDTEFTU0lDcghOTEtSUjFSRQozCNGkARIDODU4GMM7IMhoKOKS_gIw75b-AjhOQAFYAWoIRUNMQVNTSUNyCE5MS1JSMVJFEgoIARABGAEqAlFSGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from Seoul (ICN) to Philadelphia (PHL) ### September is typically the cheapest month to fly From £370 - £653 per traveller. Flight from Seoul to Philadelphia route information | Origin airport | Incheon Intl. | | --- | --- | | Destination airport | Philadelphia Intl. | | Airlines serving | Air Canada, Korean Air, Qatar Airways | | Return price | £523 | | Distance | 11070 km | ## Compare flights from Seoul to Philadelphia easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seoul to Philadelphia. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Philadelphia Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Incheon Intl. to Philadelphia 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 Incheon Intl. (ICN) to Philadelphia Intl. (PHL) The easiest way to view the best deals on flights from Seoul to Philadelphia 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 Incheon Intl. to Philadelphia Intl. start at just £523 and range up to £1,455.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Seoul and Philadelphia - booking your flight during November, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Seoul to Philadelphia flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Incheon Intl. to Philadelphia 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 Seoul–Incheon Intl. Airport to PHL? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from ICN to PHL was £523. Great fares don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Seoul–Incheon Intl. Airport to PHL? > Most flights can be cancelled online, but whether or not you incur a fee varies between airlines. If you do need to cancel your trip, follow the instructions in the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from Incheon Airport to PHL 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 Incheon Airport to Philadelphia Intl. Airport (PHL) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Seoul–Incheon Intl. Airport to Philadelphia Airport? > South Korea to Philadelphia is around 11,100 kilometres, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your hoodie to your headphones. Take a few snacks to nibble on throughout your flight too. ### Which airlines fly direct from Seoul–Incheon Intl. Airport to Philadelphia Intl. Airport (PHL)? > If you want to fly straight from Incheon Intl. Airport (ICN) to PHL, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route. ### Are Incheon Intl. Airport (ICN) to PHL flight tickets cheaper when they're purchased at the last minute? > Flight prices always go up and down, so it's no sure thing. While last-minute deals between Seoul–Incheon Intl. Airport and Philadelphia Intl. Airport (PHL) are of course possible, it's also a good idea to keep an eye on prices well before you fly. In fact, some airlines release their prices up to a year ahead of the departure date. Expedia is constantly updating the best airfare bargains around, so keep checking and be ready to secure your seat when fare prices drop. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Related Airlines - Nearby Airports - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Seoul - [Seoul to Shanghai (ICN - PVG)](https://expedia.co.uk/lp/flights/icn/pvg/seoul-to-shanghai) - [Seoul to Bangkok (ICN - BKK)](https://expedia.co.uk/lp/flights/icn/bkk/seoul-to-bangkok) - [Seoul to London (ICN - LCY)](https://expedia.co.uk/lp/flights/icn/lcy/seoul-to-london) - [Seoul to Sapporo (ICN - CTS)](https://expedia.co.uk/lp/flights/icn/cts/seoul-to-sapporo) - [Seoul to Hong Kong (ICN - HKG)](https://expedia.co.uk/lp/flights/icn/hkg/seoul-to-hong-kong) - [Seoul to Kathmandu (ICN - KTM)](https://expedia.co.uk/lp/flights/icn/ktm/seoul-to-kathmandu) - [Seoul to Taipei (ICN - TPE)](https://expedia.co.uk/lp/flights/icn/tpe/seoul-to-taipei) - [Seoul to Manila (ICN - MNL)](https://expedia.co.uk/lp/flights/icn/mnl/seoul-to-manila) - [Seoul to Istanbul (ICN - IST)](https://expedia.co.uk/lp/flights/icn/ist/seoul-to-istanbul) - [Seoul to Tokyo (ICN - NRT)](https://expedia.co.uk/lp/flights/icn/nrt/seoul-to-tokyo) - [Seoul to Hanoi (ICN - HAN)](https://expedia.co.uk/lp/flights/icn/han/seoul-to-hanoi) - [Seoul to London (ICN - LHR)](https://expedia.co.uk/lp/flights/icn/lhr/seoul-to-london) ### Top Routes to Philadelphia - [Bristol to Philadelphia (BRS - PHL)](https://expedia.co.uk/lp/flights/brs/phl/bristol-to-philadelphia) - [London to Philadelphia (LCY - PHL)](https://expedia.co.uk/lp/flights/lcy/phl/london-to-philadelphia) - [Tampa to Philadelphia (TPA - PHL)](https://expedia.co.uk/lp/flights/tpa/phl/tampa-to-philadelphia) - [Boston to Philadelphia (BOS - PHL)](https://expedia.co.uk/lp/flights/bos/phl/boston-to-philadelphia) - [Liverpool to Philadelphia (LPL - PHL)](https://expedia.co.uk/lp/flights/lpl/phl/liverpool-to-philadelphia) - [Leeds to Philadelphia (LBA - PHL)](https://expedia.co.uk/lp/flights/lba/phl/leeds-to-philadelphia) - [Edinburgh to Philadelphia (EDI - PHL)](https://expedia.co.uk/lp/flights/edi/phl/edinburgh-to-philadelphia) - [Hull to Philadelphia (HUY - PHL)](https://expedia.co.uk/lp/flights/huy/phl/hull-to-philadelphia) - [Lubbock to Philadelphia (LBB - PHL)](https://expedia.co.uk/lp/flights/lbb/phl/lubbock-to-philadelphia) - [Dublin to Philadelphia (DUB - PHL)](https://expedia.co.uk/lp/flights/dub/phl/dublin-to-philadelphia) - [Birmingham to Philadelphia (BHX - PHL)](https://expedia.co.uk/lp/flights/bhx/phl/birmingham-to-philadelphia) - [Newcastle to Philadelphia (NCL - PHL)](https://expedia.co.uk/lp/flights/ncl/phl/newcastle-to-philadelphia) ### Top Routes from Seoul - [Asiana Airlines Seoul to Tokyo](https://expedia.co.uk/lp/flight-routes/asiana-airlines-from-incheon-intl-to-narita-intl/oz/icn/nrt) - [Etihad Airways Seoul to London](https://expedia.co.uk/lp/flight-routes/etihad-airways-from-incheon-intl-to-heathrow/ey/icn/lhr) ### Top Routes to Philadelphia - [Aer Lingus Dublin to Philadelphia](https://expedia.co.uk/lp/flight-routes/aer-lingus-from-dublin-to-philadelphia-intl/ei/dub/phl) - [Aer Lingus London to Philadelphia](https://expedia.co.uk/lp/flight-routes/aer-lingus-from-heathrow-to-philadelphia-intl/ei/lhr/phl) ### 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 - [KLM](https://expedia.co.uk/KLM-Flights.cKL.Travel-Guide-Airlines) - [Qatar Airways](https://expedia.co.uk/Qatar-Airways-Flights.cQR.Travel-Guide-Airlines) - [China Southern Airlines](https://expedia.co.uk/China-Southern-Airlines-Flights.cCZ.Travel-Guide-Airlines) - [Turkish Airlines](https://expedia.co.uk/Turkish-Airlines-Flights.cTK.Travel-Guide-Airlines) - [Air France](https://expedia.co.uk/Air-France-Flights.cAF.Travel-Guide-Airlines) - [Air China](https://expedia.co.uk/Air-China-Flights.cCA.Travel-Guide-Airlines) - [Etihad Airways](https://expedia.co.uk/Etihad-Airways-Flights.cEY.Travel-Guide-Airlines) - [Cathay Pacific](https://expedia.co.uk/Cathay-Pacific-Flights.cCX.Travel-Guide-Airlines) - [Korean Air](https://expedia.co.uk/Korean-Air-Flights.cKE.Travel-Guide-Airlines) - [Finnair](https://expedia.co.uk/Finnair-Flights.cAY.Travel-Guide-Airlines) - [Asiana Airlines](https://expedia.co.uk/Asiana-Airlines-Flights.cOZ.Travel-Guide-Airlines) - [China Eastern Airlines](https://expedia.co.uk/China-Eastern-Airlines-Flights.cMU.Travel-Guide-Airlines) - [Emirates](https://expedia.co.uk/Emirates-Flights.cEK.Travel-Guide-Airlines) - [Lufthansa](https://expedia.co.uk/Lufthansa-Flights.cLH.Travel-Guide-Airlines) - [LOT-Polish Airlines](https://expedia.co.uk/LOT-Polish-Airlines-Flights.cLO.Travel-Guide-Airlines) - [Thai Airways International](https://expedia.co.uk/Thai-Airways-International-Flights.cTG.Travel-Guide-Airlines) Seoul Airports #### Seoul ### Nearby Airports - [Gwangju Intl. Airport (KWJ)](https://expedia.co.uk/lp/airports/kwj/flights-from-gwangju-intl-airport) - [Sacheon Airport (HIN)](https://expedia.co.uk/lp/airports/hin/flights-from-sacheon-airport) ### Expedia's Latest Trends Flights - [LHR to BOS flights](https://expedia.co.uk/lp/flights/lhr/bos/london-to-boston) - [LHR to CVG flights](https://expedia.co.uk/lp/flights/lhr/cvg/london-to-cincinnati) - [LHR to SEA flights](https://expedia.co.uk/lp/flights/lhr/sea/london-to-seattle) - [BOS to LHR flights](https://expedia.co.uk/lp/flights/bos/lhr/boston-to-london) - [ICN to LHR flights](https://expedia.co.uk/lp/flights/icn/lhr/seoul-to-london) - [LHR to CMH flights](https://expedia.co.uk/lp/flights/lhr/cmh/london-to-columbus) - [MAN to BOS flights](https://expedia.co.uk/lp/flights/man/bos/manchester-to-boston) - [LAS to LAX flights](https://expedia.co.uk/lp/flights/las/lax/las-vegas-to-los-angeles) - [MAN to ICN flights](https://expedia.co.uk/lp/flights/man/icn/manchester-to-seoul) - [LHR to FLL flights](https://expedia.co.uk/lp/flights/lhr/fll/london-to-fort-lauderdale) - [LON to NYC flights](https://expedia.co.uk/lp/flights/lon/nyc/london-to-new-york) - [LAS to SFO flights](https://expedia.co.uk/lp/flights/las/sfo/las-vegas-to-san-francisco) - [LHR to CLE flights](https://expedia.co.uk/lp/flights/lhr/cle/london-to-cleveland) - [LHR to PIT flights](https://expedia.co.uk/lp/flights/lhr/pit/london-to-pittsburgh) - [YYZ to NYC flights](https://expedia.co.uk/lp/flights/yyz/nyc/toronto-to-new-york) - [EDI to BOS flights](https://expedia.co.uk/lp/flights/edi/bos/edinburgh-to-boston) - [MAN to LAS flights](https://expedia.co.uk/lp/flights/man/las/manchester-to-las-vegas) - [LAX to LAS flights](https://expedia.co.uk/lp/flights/lax/las/los-angeles-to-las-vegas) - [DFW to LHR flights](https://expedia.co.uk/lp/flights/dfw/lhr/dallas-to-london) - [ICN to NRT flights](https://expedia.co.uk/lp/flights/icn/nrt/seoul-to-tokyo) - [MAN to DFW flights](https://expedia.co.uk/lp/flights/man/dfw/manchester-to-dallas) - [SFO to LAS flights](https://expedia.co.uk/lp/flights/sfo/las/san-francisco-to-las-vegas) - [JFK to LAS flights](https://expedia.co.uk/lp/flights/jfk/las/new-york-to-las-vegas) - [LHR to SAN flights](https://expedia.co.uk/lp/flights/lhr/san/london-to-san-diego) - [DUB to LAS flights](https://expedia.co.uk/lp/flights/dub/las/dublin-to-las-vegas) - [GLA to LAS flights](https://expedia.co.uk/lp/flights/gla/las/glasgow-to-las-vegas) - [LHR to LAS flights](https://expedia.co.uk/lp/flights/lhr/las/london-to-las-vegas) - [LHR to ICN flights](https://expedia.co.uk/lp/flights/lhr/icn/london-to-seoul) - [BOS to JFK flights](https://expedia.co.uk/lp/flights/bos/jfk/boston-to-new-york) - [LHR to DFW flights](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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