Title: Cheap Flights to Plymouth , WA from CA $134 - Expedia.ca ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights to Plymouth , WA from CA $134 [View CA $134 flight on Sat, Apr 25, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:PSC,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:133.80&airProductToken=AQoiCiAIwaYBEgQyMzAyGJIBIM8UKJ6siwMw2qyLAzhYQABYARIKCAEQARgBKgJBUxgBIgQIARABKAQwAQ) - [Roundtrip](?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 [Hotels in Plymouth](https://expedia.ca/Plymouth-Hotels.d553248635975866567.Travel-Guide-Hotels)[Plymouth Car Rentals](https://expedia.ca/Car-Rentals-In-Plymouth.d553248635975866567.Car-Rental-Guide)[Plymouth Vacation Packages](https://expedia.ca/Plymouth.d553248635975866567.Destination-Travel-Guides) ## Popular airlines to Plymouth - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AM.svg) Aeromexico [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AM"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plymouth, Washington, United States of America,departure:06/03/2026TANYT&leg2=from:Plymouth, Washington, United States of America,to:CMH,departure:13/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](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\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](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.ca/login) ## How much is the cheapest flight to Plymouth? Prices were available within the past 7 days and start at CA $134 for one-way flights and CA $214 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Mar 14 - Tue, Mar 17 SEA Seattle PSC Pasco CA $214 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PSC,departure:14/03/2026TANYT&leg2=from:PSC,to:SEA,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:213.80&airProductToken=AQoiCiAIxJgBEgQzOTkyGJIBIM8UKJ3PhwMw3M-HAzhFQABYAQoiCiAIxJgBEgQzOTkyGM8UIJIBKOHxhwMwp_KHAzhFQABYARIKCAEQARgBKgJETBgBIgQIARABKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Mar 14 - Mon, Mar 16 SEA Seattle PSC Pasco CA $241 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PSC,departure:14/03/2026TANYT&leg2=from:PSC,to:SEA,departure:16/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:240.70&airProductToken=AQovCi0IwaYBEgMyMTIYkgEgzxQordOHAzDr04cDOFhAAFgBagJTVnIIT0gyRVhVQk4KMAouCMGmARIEMjM2NhjPFCCSASjM5ocDMI7nhwM4WEAAWAFqAlNWcghOSDJFQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Hawaiian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif) Wed, Mar 11 - Sun, Mar 15 SEA Seattle PSC Pasco CA $241 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PSC,departure:11/03/2026TANYT&leg2=from:PSC,to:SEA,departure:15/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:240.70&airProductToken=AQoiCiAIyIIBEgQ2ODUzGJIBIM8UKM2xhwMwi7KHAzhVQABYAQoiCiAIyIIBEgQ2MjYwGM8UIJIBKKzbhwMw7tuHAzhVQABYARIKCAEQARgBKgJIQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Mar 5 - Fri, Mar 20 DEN Denver PSC Pasco CA $408 Roundtrip found 9 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:PSC,departure:05/03/2026TANYT&leg2=from:PSC,to:DEN,departure:20/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:407.30&airProductToken=AQoiCiAI1YIBEgQxOTEzGINpIM8UKObthgMwhu-GAzhLQABYAQoiCiAI1YIBEgQxMjgzGM8UIINpKPWPiAMwi5GIAzhLQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Apr 22 - Tue, Apr 28 YYZ Toronto PSC Pasco CA $540 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:PSC,departure:22/04/2026TANYT&leg2=from:PSC,to:YYZ,departure:28/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:539.51&airProductToken=AQqcAQoyCMGCARIENTg4NxiYzgEg71kokIOLAzD5g4sDOEJAAFgBagVCQVNJQ3IIU1ZBQ1pTQlgKMgjBggESBDE3NzAY71kg77kBKLCEiwMw8IaLAzhCQAFYAWoFQkFTSUNyCFNWQUNaU0JYCjIIwYIBEgQ1MDA2GO-5ASDPFCjciIsDMIiKiwM4QkABWAFqBUJBU0lDcghTVkFDWlNCWAqeAQoyCMGCARIENTAwNxjPFCDvuQEo0MaLAzD4x4sDOEJAAFgBagVCQVNJQ3IIU1ZBQ1pTQlgKMwjBggESBDE5OTAY77kBIOKaASizyIsDMJzKiwM4QkABWAFqBUJBU0lDcghTVkFDWlNCWAozCMGCARIENTA0NxjimgEgmM4BKL7MiwMwwM2LAzhCQAFYAWoFQkFTSUNyCFNWQUNaU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.ca/deals?rfrr=FTG_SPRING_PROMO_) ## Book with confidence Expedia.ca gives you the best tools to secure great deals on flights to Plymouth. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Plymouth. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Plymouth. Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Plymouth flights with full confidence knowing that you've found the best deal online. Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Plymouth. Looking to save even more? Get additional savings by bundling your Plymouth flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Plymouth trip! ## Travel information | Destination airport | Tri-Cities | | ----------------------------- | ---------- | | Destination airport IATA code | PSC | | Destination city name | Pasco | | Roundtrip price | CA $311 | ## Trending flights to Plymouth Prices were available within the past 7 days and start at CA $134 for one-way flights and CA $214 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Mon, Apr 20 - Mon, Apr 27 YYZ Toronto PSC Pasco CA $401 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:PSC,departure:20/04/2026TANYT&leg2=from:PSC,to:YYZ,departure:27/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:400.60&airProductToken=AQqlAQo2CMSYARIEMzgzNhiYzgEgzHwo1u6KAzDp74oDOEVAAFgBaglNQUlOQkFTSUNyCFZBVlNBMEJDCjQIxJgBEgM4ODEYzHwgkgEol_KKAzD784oDOEVAAVgBaglNQUlOQkFTSUNyCFZBVlNBMEJDCjUIxJgBEgQ0MDE3GJIBIM8UKP70igMwxfWKAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTQTBCQwqmAQo1CMSYARIEMzY4NRjPFCDMfCj7u4sDMLS9iwM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0EwQkMKNQjEmAESBDI3MzIYzHwgywEouL-LAzDawIsDOEVAAVgBaglNQUlOQkFTSUNyCFZBVlNBMEJDCjYIxJgBEgQ1MTg4GMsBIJjOASjzwYsDMN_CiwM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWU0EwQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) \*Available to Expedia members.