Title: CA $160 Cheap Flights & Airfare to Washington County - Expedia.ca ![Lodging Image](https://a.travel-assets.com/travel-assets-manager/bex-affinities/lodging.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/bex-affinities/lodging.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $160 Cheap Flight to Washington County [View CA $160 flight on Fri, Apr 24, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:DTW,to:STL,departure:24/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:160.00&airProductToken=AQppCjMIwYIBEgQxMTA4GOO0ASCjsQEo4ZiLAzCemosDOEJAAFgBagVCQVNJQ3IIT1ZBSVlTQlYKMgjBggESBDI5NDEYo7EBIPJcKPqaiwMw5ZuLAzhCQAFYAWoFQkFTSUNyCE9WQUlZU0JWEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) - [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 [Washington County Hotels](https://expedia.ca/Destinations-In-Washington-County.d553248635976433502.Hotel-Destinations)[Vacation Rentals in Washington County](https://expedia.ca/Destinations-In-Washington-County.d553248635976433502.Vacation-Rental-Destinations)[Washington County Car Rentals](https://expedia.ca/Destinations-In-Washington-County.d553248635976433502.Car-Rental-Destinations)[Washington County Vacations](https://expedia.ca/Washington-County.d553248635976433502.Destination-Travel-Guides) ## Popular airlines to Washington County - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada - ![](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 Washington County? Prices were available within the past 7 days and start at CA $160 for one-way flights and CA $298 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Mar 11 - Sat, Mar 28 DTW Detroit STL St. Louis CA $298 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:11/03/2026TANYT&leg2=from:STL,to:DTW,departure:28/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:297.40&airProductToken=AQpFCiEI1YIBEgQ1NTIzGOO0ASCuHCjkq4cDML6shwM4S0AAWAEKIAjVggESBDU1MDgYrhwg8lwow62HAzCerocDOEtAAVgBCkUKIAjVggESBDQ1MzcY8lwgrhwo-OiIAzDS6YgDOEtAAFgBCiEI1YIBEgQ1NzE3GK4cIOO0ASiA6ogDMNrqiAM4S0ABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Apr 24 - Tue, Apr 28 DTW Detroit STL St. Louis CA $308 Roundtrip found 5 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:24/04/2026TANYT&leg2=from:STL,to:DTW,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:307.10&airProductToken=AQppCjMIwYIBEgQxMTA4GOO0ASCjsQEo4ZiLAzCemosDOEJAAFgBagVCQVNJQ3IIT1ZBSVlTQlYKMgjBggESBDI5NDEYo7EBIPJcKPqaiwMw5ZuLAzhCQAFYAWoFQkFTSUNyCE9WQUlZU0JWCmkKMgjBggESBDI5NTgY8lwg4poBKMjKiwMwwcuLAzhCQABYAWoFQkFTSUNyCE9WQUlLU0JWCjMIwYIBEgQyMDU1GOKaASDjtAEoh82LAzD0zYsDOEJAAVgBagVCQVNJQ3IIT1ZBSUtTQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Mar 6 - Mon, Mar 9 DTW Detroit STL St. Louis CA $319 Roundtrip found 5 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:06/03/2026TANYT&leg2=from:STL,to:DTW,departure:09/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:318.90&airProductToken=AQppCjMIwYIBEgQzMTk1GOO0ASDimgEo1_SGAzDH9YYDOEJAAFgBagVCQVNJQ3IIT1ZBSVlTQlYKMgjBggESBDI0NzcY4poBIPJcKIb3hgMwh_iGAzhCQAFYAWoFQkFTSUNyCE9WQUlZU0JWCmkKMgjBggESBDI1MDcY8lwgo7EBKLmYhwMws5mHAzhCQABYAWoFQkFTSUNyCE9WQUlZU0JWCjMIwYIBEgQyNTA4GKOxASDjtAEorZqHAzDOm4cDOEJAAVgBagVCQVNJQ3IIT1ZBSVlTQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, May 1 - Mon, May 4 DTW Detroit STL St. Louis CA $321 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:01/05/2026TANYT&leg2=from:STL,to:DTW,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:321.00&airProductToken=AQpnCjIIwYIBEgQzMzg3GOO0ASCuHCj85osDMM_niwM4QkAAWAFqBUJBU0lDcghPVkFJWVNCVgoxCMGCARIEMzg3MBiuHCDyXCiv6IsDMITpiwM4QkABWAFqBUJBU0lDcghPVkFJWVNCVgpnCjEIwYIBEgQyNDQ0GPJcIK4cKJWKjAMw8IqMAzhCQABYAWoFQkFTSUNyCE9WQUlZU0JWCjIIwYIBEgQ0MDU4GK4cIOO0ASjdi4wDMLmMjAM4QkABWAFqBUJBU0lDcghPVkFJWVNCVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Apr 3 - Sat, Apr 18 DTW Detroit STL St. Louis CA $351 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:03/04/2026TANYT&leg2=from:STL,to:DTW,departure:18/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:350.10&airProductToken=AQpFCiEI1YIBEgQzNTY3GOO0ASCuHCj2sokDMNWziQM4S0AAWAEKIAjVggESBDQ1NzYYrhwg8lwolrSJAzDstIkDOEtAAVgBCkQKHwjVggESAzQ3MxjyXCCuHCi91ooDMJPXigM4TEAAWAEKIQjVggESBDU3NTYYrhwg47QBKPbXigMw0NiKAzhMQAFYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Apr 24 - Tue, Apr 28 DTW Detroit STL St. Louis CA $365 Roundtrip found 5 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:24/04/2026TANYT&leg2=from:STL,to:DTW,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:364.35&airProductToken=AQo4CjYIxJgBEgQyODIyGOO0ASDyXCiwnYsDMJaeiwM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0E2QkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, May 1 - Mon, May 4 DTW Detroit STL St. Louis CA $365 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:01/05/2026TANYT&leg2=from:STL,to:DTW,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:364.52&airProductToken=AQpnCjIIwYIBEgQxMjU5GOO0ASCuHCi454sDMIzoiwM4QkAAWAFqBUJBU0lDcghPVkFJWVNCVgoxCMGCARIEMzg3MBiuHCDyXCiv6IsDMITpiwM4QkABWAFqBUJBU0lDcghPVkFJWVNCVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Mar 13 - Tue, Mar 17 DTW Detroit STL St. Louis CA $373 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:STL,departure:13/03/2026TANYT&leg2=from:STL,to:DTW,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:372.19&airProductToken=AQpnCjII1YIBEgQ1NTIzGOO0ASCuHCikwocDMP7ChwM4TEAAWAFqBTJfZWNvcghMQVAyQUtEUwoxCNWCARIENDQ2MBiuHCDyXCjqxIcDMMPFhwM4TEAAWAFqBTJfZWNvcghMQVAyQUtEUxIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, Mar 31 - Sat, Apr 18 YYZ Toronto STL St. Louis CA $550 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:STL,departure:31/03/2026TANYT&leg2=from:STL,to:YYZ,departure:18/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:549.50&airProductToken=AQpDCiAIwaYBEgMzOTEYmM4BIJIBKOePiQMwsZKJAzhYQABYAQofCMGmARIDMzg4GJIBIPJcKNuYiQMwx5qJAzhYQAFYAQpDCh8IwaYBEgMzODgY8lwgkgEowNqKAzDR3IoDOFhAAFgBCiAIwaYBEgMzODUYkgEgmM4BKOniigMwgeWKAzhYQAFYARIKCAEQARgBKgJBUxgBIgQIARABKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Feb 26 - Mon, Mar 2 YYZ Toronto STL St. Louis CA $553 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:STL,departure:26/02/2026TANYT&leg2=from:STL,to:YYZ,departure:02/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:552.87&airProductToken=AQo0CjIIwYYBEgQ4OTY5GJjOASDyXCjUm4YDMOmchgM4R0AAWAFqBUJBU0lDcghHTkE0QTJCQQo0CjIIwYYBEgQ4ODkwGPJcIJjOASiNyoYDMIbLhgM4R0AAWAFqBUJBU0lDcghHTkE0QTJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ![](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_) ## Top Travel Tips for Flying to Washington County Get ready for an incredible adventure as you embark on your journey to Washington County. With Expedia, finding the perfect flights is a breeze. Discover valuable travel insights and expert tips to ensure a seamless and enjoyable trip to this captivating destination. **Unleash Your Wanderlust** Pack your bags, secure your flights to Washington County, and let Expedia be your trusted companion in fulfilling your travel dreams. Our wide selection of flights offers you the flexibility to explore Washington County in your own unique style. Experience the trip of a lifetime with just a click, courtesy of Expedia. **Unbeatable Value with Expedia** At Expedia, we understand the importance of budget-friendly travel. That's why we are dedicated to bringing you the best deals on affordable and cheap flights from the UK to Washington County. Experience the perfect balance between adventure and savings with our competitively-priced roundtrip and one-way flight options. **Endless Flight Choices** With 20 different airlines flying to Washington County, you have a world of options at your fingertips. Whether you're a spontaneous traveler or a meticulous planner, find the flights that suit your schedule and preferences seamlessly. Explore last-minute deals or plan ahead with ease. **Empowering Your Decision** We believe in putting you in control of your travel choices. Our extensive range of airline tickets to Washington County caters to every budget, starting from the lowest price CA $160\. Enjoy the freedom to choose the perfect flights that align with your needs and desires. **Effortless Booking Process** Experience a hassle-free booking journey with Expedia. Whether you're seeking a red-eye flight, a direct route to a specific airport, or one-way flights to Washington County, our streamlined booking process ensures convenience and efficiency. Download our mobile booking app to reserve your flights anytime, anywhere. **Your Adventure Awaits** It's time to make your dreams a reality. Book your airfare to Washington County today with Expedia. Begin crafting your unique travel story and get ready for an unforgettable experience that caters to your tastes and budget. Start your journey now and let the adventure unfold. ## Washington County Flights Information | Airlines serving | American Airlines, Delta, United, Air Canada, Alaska Airlines | | ---------------- | ------------------------------------------------------------- | | Roundtrip price | from CA $298 | ## Frequently asked questions ### How far is BLV from central Washington County? ### What airport is best to fly into Washington County? ### How many nonstop flights are there to Washington County? ### Where are the most popular flights to Washington County departing from? - Top Flights Destinations - Top Washington County Hotels - Other Airlines ### Top Flight Destinations In Washington County - [Flights to Southern Illinois ](https://expedia.ca/Cheap-Flights-To-Southern-Illinois.d6233859.Travel-Guide-Flights) - [Flights to Centralia ](https://expedia.ca/Cheap-Flights-To-Centralia.d55627.Travel-Guide-Flights) - [Flights to Central United States ](https://expedia.ca/Cheap-Flights-To-Central-United-States.d6209877.Travel-Guide-Flights) - [Flights to Southwest Illinois ](https://expedia.ca/Cheap-Flights-To-Southwest-Illinois.d6058943.Travel-Guide-Flights) ### Top Flight Destinations In the World - [Flights to Italy ](https://expedia.ca/Destinations-In-Italy.d86.Flight-Destinations) - [Flights to France ](https://expedia.ca/Destinations-In-France.d59.Flight-Destinations) - [Flights to United Kingdom ](https://expedia.ca/Destinations-In-United-Kingdom.d190.Flight-Destinations) - [Flights to Australia ](https://expedia.ca/Destinations-In-Australia.d10.Flight-Destinations) - [Flights to Türkiye ](https://expedia.ca/Destinations-In-Turkiye.d183.Flight-Destinations) - [Flights to Norway ](https://expedia.ca/Destinations-In-Norway.d138.Flight-Destinations) - [Flights to Germany ](https://expedia.ca/Destinations-In-Germany.d64.Flight-Destinations) - [Flights to Brazil ](https://expedia.ca/Destinations-In-Brazil.d23.Flight-Destinations) - [Flights to Indonesia ](https://expedia.ca/Destinations-In-Indonesia.d81.Flight-Destinations) - [Flights to Mexico ](https://expedia.ca/Destinations-In-Mexico.d117.Flight-Destinations) - [Flights to Canada ](https://expedia.ca/Destinations-In-Canada.d31.Flight-Destinations) - [Flights to Argentina ](https://expedia.ca/Destinations-In-Argentina.d8.Flight-Destinations) - [Flights to Colombia ](https://expedia.ca/Destinations-In-Colombia.d38.Flight-Destinations) - [Flights to Switzerland ](https://expedia.ca/Destinations-In-Switzerland.d174.Flight-Destinations) - [Flights to Spain ](https://expedia.ca/Destinations-In-Spain.d166.Flight-Destinations) - [Flights to Japan ](https://expedia.ca/Destinations-In-Japan.d89.Flight-Destinations) - [Flights to Thailand ](https://expedia.ca/Destinations-In-Thailand.d178.Flight-Destinations) - [Flights to Philippines ](https://expedia.ca/Destinations-In-Philippines.d145.Flight-Destinations) - [Flights to South Korea ](https://expedia.ca/Destinations-In-South-Korea.d94.Flight-Destinations) - [Flights to Sweden ](https://expedia.ca/Destinations-In-Sweden.d173.Flight-Destinations) ### Top Washington County Hotels - [Drury Plaza Hotel Mt. Vernon ](https://expedia.ca/Mount-Vernon-Hotels-Drury-Inn-Suites-Mt-Vernon.h42021.Hotel-Information) - [Super 8 by Wyndham O'Fallon ](https://expedia.ca/Collinsville-Hotels-Super-8-By-Wyndham-OFallon.h11071.Hotel-Information) - [Drury Inn & Suites St. Louis O'Fallon, IL ](https://expedia.ca/Collinsville-Hotels-Drury-Inn-Suites-St-Louis-OFallon.h1544028.Hotel-Information) - [Comfort Suites Mount Vernon ](https://expedia.ca/Mount-Vernon-Hotels-Comfort-Suites-Mount-Vernon.h1387309.Hotel-Information) - [Quality Inn O'Fallon IL - St. Louis ](https://expedia.ca/Collinsville-Hotels-Quality-Inn-OFallon-I-64.h64675.Hotel-Information) - [La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis ](https://expedia.ca/Collinsville-Hotels-La-Quinta-Inn-Suites-By-Wyndham-OFallon.h201286.Hotel-Information) - [Holiday Inn Express & Suites - O'Fallon /Shiloh by IHG ](https://expedia.ca/Collinsville-Hotels-Holiday-Inn-Express-Suites-OFallon-Shiloh.h1037681.Hotel-Information) - [Baymont by Wyndham O'Fallon St. Louis Area ](https://expedia.ca/Collinsville-Hotels-Baymont-By-Wyndham-OFallon-St-Louis-Area.h60642.Hotel-Information) - [Holiday Inn Express & Suites Mount Vernon by IHG ](https://expedia.ca/Mount-Vernon-Hotels-Holiday-Inn-Express-Suites-Mount-Vernon.h16341844.Hotel-Information) - [Sleep Inn O'Fallon near I-64 ](https://expedia.ca/Collinsville-Hotels-Sleep-Inn.h168383.Hotel-Information) - [Fairfield Inn & Suites by Marriott O'Fallon, IL ](https://expedia.ca/Collinsville-Hotels-Fairfield-Inn-Suites-By-Marriott-OFallon.h59624258.Hotel-Information) - [Comfort Inn & Suites O'Fallon - St. Louis Area ](https://expedia.ca/OFallon-Hotels-Regency-Inn-Suites.h42017.Hotel-Information) - [Fairgrounds Inn ](https://expedia.ca/Carbondale-Hotels-Fairgrounds-Inn.h6909469.Hotel-Information) - [Super 8 by Wyndham Mt. Vernon IL ](https://expedia.ca/Mount-Vernon-Hotels-Super-8-By-Wyndham-Mt-Vernon-IL.h861371.Hotel-Information) - [Best Western Plus MidAmerica Hotel ](https://expedia.ca/Collinsville-Hotels-Best-Western-Plus-MidAmerica-Hotel.h2662110.Hotel-Information) - [Welcome Suites ](https://expedia.ca/Collinsville-Hotels-Welcome-Suites.h2141767.Hotel-Information) - [Candlewood Suites O Fallon by IHG ](https://expedia.ca/Collinsville-Hotels-Candlewood-Suites-O-Fallon.h1503826.Hotel-Information) - [Days Inn by Wyndham Mount Vernon ](https://expedia.ca/Mount-Vernon-Hotels-Days-Inn-By-Wyndham-Mount-Vernon.h423046.Hotel-Information) - [Hilton Garden Inn St. Louis Shiloh/O'Fallon IL ](https://expedia.ca/Collinsville-Hotels-Hilton-Garden-Inn-St-Louis-ShilohOFallon-IL.h2109882.Hotel-Information) - [Hampton Inn O'Fallon ](https://expedia.ca/Collinsville-Hotels-Hampton-Inn-OFallon.h45481421.Hotel-Information) ### Other Airlines - [Amber Air ](https://expedia.ca/Amber-Air-Flights.c0A.Travel-Guide-Airlines) - [BlueAir ](https://expedia.ca/BlueAir-Flights.c0B.Travel-Guide-Airlines) - [Catovair ](https://expedia.ca/Cobra-Aviation-Flights.c0C.Travel-Guide-Airlines) - [Darwin Airline SA Lugano ](https://expedia.ca/Darwin-Airline-SA-Lugano-Flights.c0D.Travel-Guide-Airlines) - [Evergreen International ](https://expedia.ca/Evergreen-International-Flights.c0E.Travel-Guide-Airlines) - [Ghadames Air Transport ](https://expedia.ca/Ghadames-Air-Transport-Flights.c0G.Travel-Guide-Airlines) - [Aircompany Kokshetau ](https://expedia.ca/AirCompany-Kokshetau-Flights.c0K.Travel-Guide-Airlines) - [Palau Asia ](https://expedia.ca/Palau-Asia-Flights.c0P.Travel-Guide-Airlines) - [Royal Airways Limited ](https://expedia.ca/Royal-Airways-Limited-Flights.c0S.Travel-Guide-Airlines) - [West Caribbean Costa Rica ](https://expedia.ca/West-Caribbean-Costa-Rica-Flights.c0W.Travel-Guide-Airlines) ## Trending flights to Washington County These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sat, Jun 6 - Mon, Jun 8 YOW Ottawa STL St. Louis CA $408 Roundtrip found 20 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:STL,departure:06/06/2026TANYT&leg2=from:STL,to:YOW,departure:08/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:407.40&airProductToken=AQpFCiEIwYYBEgQ4MDEwGNizASCYXSjUgI8DMIWBjwM4R0AAWAEKIAjBhgESBDE1NjUYmF0g8lwokoKPAzDBg48DOEdAAVgBCkUKIAjVggESBDEyNzAY8lwgrhwotJOPAzCOlI8DOE5AAFgBCiEI1YIBEgQzNjYxGK4cINizASjblY8DMOWWjwM4TkABWAESCggBEAEYASoCQUMYASIECAEQASgIKAQwAQ) \*Available to Expedia members.