--- title: "£129 Cheap Delta flights from Seattle to Pasco (SEA→PSC) - Expedia.co.uk" description: "Book Delta flights from Seattle (SEA) to Pasco (PSC) from £129 for one-way flights and for round trip with Delta & save!" canonical: "https://www.expedia.co.uk/lp/flight-routes/delta-from-seattle-tacoma-intl-to-tri-cities/dl/sea/psc" language: en-GB market: GB currency: GBP prices_as_of: 2026-11-13T19:13:08Z --- # £129 Cheap Delta flights from Seattle to Pasco (SEA→PSC) ![A gravel road winding through a dry grassland with steep cliffs on one side.](https://images.trvl-media.com/place/4412240/0600b224-9fb6-4740-b752-140593c8a666.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View £129 flight on Thu, 7 Jan 2027](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:07/01/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:128.60&airProductToken=AQo3CjUIxJgBEgQ0MDE3GJIBIM8UKOv4oQMwsvmhAzhFQABYAWoJTUFJTkJBU0lDcghYQVdTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ### 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) Find the cheapest Delta flights on Expedia from Seattle (SEA) to Pasco (PSC). Flight ticket prices change frequently based on availability and demand. We send price-drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia with Delta for this route in the past 7 days starts at £129 for travel on 7 January 2027. ## £129 Cheap Delta flights Seattle (SEA) to Pasco (PSC) Prices were available within the past 7 days and start at £129 for one-way flights, for the period specified. Prices and availability are subject to change. Additional terms apply. One way [Select Delta flight, departing Thu, 7 Jan from Seattle to Pasco, priced at £129 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:07/01/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:128.60&airProductToken=AQo3CjUIxJgBEgQ0MDE3GJIBIM8UKOv4oQMwsvmhAzhFQABYAWoJTUFJTkJBU0lDcghYQVdTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £129 · One way [Select Delta flight, departing Sat, 9 Jan from Seattle to Pasco, priced at £147 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:09/01/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:146.90&airProductToken=AQo3CjUIxJgBEgQzOTkyGJIBIM8UKNuJogMwpoqiAzhWQABYAWoJTUFJTkNMQVNDcghWQVdTSDNNRRIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £147 · One way [Select Delta flight, departing Thu, 7 Jan from Seattle to Pasco, priced at £162 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:07/01/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:161.90&airProductToken=AQo3CjUIxJgBEgQ0MDE3GJIBIM8UKOv4oQMwsvmhAzhYQABYAWoJTUFJTkNMQVNDcghYQVdTQTBNRRIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £162 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £168 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:167.50&airProductToken=AQo4CjYIxJgBEgQ0MDE3GJIBIM8UKN-MoAMwpY2gAzhTQABYAWoKQ09NRlRCQVNJQ3IIWEFXU0EwMUUSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) SEA · PSC · From £168 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £171 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:170.70&airProductToken=AQo4CjYIxJgBEgQ0MDE3GJIBIM8UKN-MoAMwpY2gAzhTQABYAWoKQ09NRlRDTEFTQ3IIWEFXU0EwSUUSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) SEA · PSC · From £171 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £179 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:178.20&airProductToken=AQo3CjUIxJgBEgQzODkxGJIBIM8UKMeIoAMwj4mgAzhFQABYAWoJTUFJTkJBU0lDcghVQVdUQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £179 · One way [Select Delta flight, departing Sun, 6 Dec from Seattle to Pasco, priced at £188 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:06/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:187.70&airProductToken=AQo3CjUIxJgBEgQzODkxGJIBIM8UKOeMnwMwr42fAzhFQABYAWoJTUFJTkJBU0lDcghVQVZOQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £188 · One way [Select Delta flight, departing Sun, 6 Dec from Seattle to Pasco, priced at £200 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:06/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:199.50&airProductToken=AQo3CjUIxJgBEgQzODkxGJIBIM8UKOeMnwMwr42fAzhYQABYAWoJTUFJTkNMQVNDcghYQVVOQTBNQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £200 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £213 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:212.60&airProductToken=AQo3CjUIxJgBEgQzODkxGJIBIM8UKMeIoAMwj4mgAzhVQABYAWoJTUFJTkNMQVNDcghVQVdUQTBNRRIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) SEA · PSC · From £213 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £216 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:215.90&airProductToken=AQo4CjYIxJgBEgQzODkxGJIBIM8UKMeIoAMwj4mgAzhXQABYAWoKQ09NRlRCQVNJQ3IIVUFXVEEwMkUSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) SEA · PSC · From £216 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £221 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:220.20&airProductToken=AQo4CjYIxJgBEgQzODkxGJIBIM8UKMeIoAMwj4mgAzhTQABYAWoKQ09NRlRDTEFTQ3IIVUFXVEEwSUUSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) SEA · PSC · From £221 · One way [Select Delta flight, departing Thu, 17 Dec from Seattle to Pasco, priced at £258 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:SEA,to:PSC,departure:17/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:257.80&airProductToken=AQo3CjUIxJgBEgQzODkxGJIBIM8UKMeIoAMwj4mgAzhVQABYAWoJTUFJTkVYVFJBcghVQVcyQTBNRRIKCAEQARgBKgJETBgBIgQIARABKAIoBCgGMAE) SEA · PSC · From £258 · One way ## Find the cheapest month to fly from Seattle (SEA) to Pasco (PSC) ### January is typically the cheapest month to fly From £185 - £226 per traveller. View flights in January Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ. ## Frequently Asked Questions ### How much is a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC)? Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap Delta Air Lines round-trip flights from SEA to PSC. Affordable one-way fares from £129 are available too.\* *\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from SEA to PSC with Delta Air Lines? January is one of the most affordable months to jet away to Pasco with Delta Air Lines. You could also find fantastic deals on one-way and round-trip tickets in February. ### Does Delta Air Lines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC)? Delta Air Lines has direct flights from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC), with 20 departures every week. Simply apply the "Nonstop" and "Airline" filters while searching on Expedia to find all direct Delta Air Lines flights to PSC. ### How long does it take to fly from SEA to PSC with Delta Air Lines? Take off from Seattle - Tacoma Intl. Airport (SEA) for Tri-Cities Airport (PSC) on a direct Delta Air Lines flight, and you'll be airborne for about 1h 6m. ### Which day of the week has the most Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC)? If it's flexibility you're after, Sunday offers the most choice for Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC). You can pick from 3 different departures. ### What airports does Delta Air Lines fly into in Pasco? The majority of Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Pasco arrive at Tri-Cities Airport (PSC). This is the airline's main entry point to this city. It's worth checking Expedia for flights to nearby airports like Walla Walla Regional Airport (ALW), as prices may be cheaper. ### What type of plane does Delta Air Lines fly from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC)? Set off on a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC), and you'll likely be flying on an Embraer 175\. Bear in mind though, that the aircraft type can change due to operational reasons. ### Can I change or cancel my Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC)? It's generally possible to cancel or reschedule your flight, although there may be a charge if you booked over 24 hours ago. Need flexible options? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge extra if you have to revise your plans. To make modifications, visit "[Trips](https://www.expedia.co.uk/trips)," select your flight and click on "Manage Booking" for further information. ## Travel information | Origin airport | Seattle-Tacoma International Airport | | ------------------- | ------------------------------------ | | Destination airport | Tri-Cities Airport | | Distance | 171 miles away | | Airline name | Delta | | Airline code | DL | | Return price | £129 | | Average flight time | 1 hour 5 mins | ## Explore a world of travel with Expedia - [Lodging](?equalTargetTab=tab-0) - [Flights](?equalTargetTab=tab-1) - [Packages](?equalTargetTab=tab-2) - [Cars](?equalTargetTab=tab-3) - [Best Western Plus Kennewick Inn](https://www.expedia.co.uk/Kennewick-Hotels-Best-Western-Plus-Kennewick-Inn.h98910.Hotel-Information) - [Comfort Inn Kennewick Richland](https://www.expedia.co.uk/Kennewick-Hotels-Comfort-Inn-Kennewick-Richland.h6012.Hotel-Information) - [Guesthouse Inns Hotels in Kennewick](https://www.expedia.co.uk/Kennewick-Hotels-Guesthouse-Inns.0-0-d6090--bGuesthouseInns.Travel-Guide-Filter-Hotels) - 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