Title: Cheap Flights to Onalaska , WA from CA $178 - 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 Onalaska , WA from CA $178 [View CA $178 flight on Wed, Apr 1, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YYC,to:SEA,departure:01/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:177.77&airProductToken=AQpnCjEIwYYBEgMyMDEYmBYguI0BKPCWiQMw0peJAzhHQABYAWoFQkFTSUNyCEdOQTRBMkJBCjIIwYYBEgQ4Nzk4GLiNASCSASjCmIkDMIOZiQM4R0ABWAFqBUJBU0lDcghHTkE0QTJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) [Hotels in Onalaska](https://expedia.ca/Onalaska-Hotels.d553248635975876136.Travel-Guide-Hotels)[Onalaska Car Rentals](https://expedia.ca/Car-Rentals-In-Onalaska.d553248635975876136.Car-Rental-Guide)[Onalaska Vacation Packages](https://expedia.ca/Onalaska.d553248635975876136.Destination-Travel-Guides) ## Popular airlines to Onalaska - ![](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:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&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_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&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_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&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:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&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_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Onalaska, Washington, United States of America,departure:11/03/2026TANYT&leg2=from:Onalaska, Washington, United States of America,to:CMH,departure:18/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](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 Onalaska? Prices were available within the past 7 days and start at CA $178 for one-way flights and CA $286 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Fri, May 22 - Mon, Jun 1 YYC Calgary SEA Seattle CA $286 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:SEA,departure:22/05/2026TANYT&leg2=from:SEA,to:YYC,departure:01/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:285.54&airProductToken=AQoiCiAI16YBEgQxNTUwGJgWIJIBKPXVjQMw6NaNAzhFQABYAQoiCiAI16YBEgQxNTUzGJIBIJgWKNrHjgMwvsiOAzhFQABYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jul 29 - Tue, Aug 11 YYC Calgary SEA Seattle CA $294 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:SEA,departure:29/07/2026TANYT&leg2=from:SEA,to:YYC,departure:11/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:293.23&airProductToken=AQpECiAI1YIBEgQxOTI0GJgWIINpKOvXkwMwgNmTAzhOQABYAQogCNWCARIEMTQ4MhiDaSCSASjw3JMDMKTekwM4TkABWAEKQwogCNWCARIEMjYwMRiSASCDaSj345QDMJrllAM4TkAAWAEKHwjVggESAzcyMBiDaSCYFiiB6pQDMJrrlAM4TkABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, Apr 17 - Sun, Apr 19 YYC Calgary PDX Portland CA $303 Roundtrip found 6 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:PDX,departure:17/04/2026TANYT&leg2=from:PDX,to:YYC,departure:19/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:302.36&airProductToken=AQpoCjEIwYYBEgMyMDEYmBYguI0BKPDKigMw0suKAzhHQABYAWoFQkFTSUNyCEdOQTRBMkJBCjMIwYYBEgQ4NjUwGLiNASDvuAEon8yKAzDqzIoDOEdAAVgBagVCQVNJQ3IIR05BNEEyQkEKaAozCMGGARIEODY1NRjvuAEguI0BKP3nigMwzOiKAzhHQABYAWoFQkFTSUNyCEdOQTRBMkJBCjEIwYYBEgMyMjgYuI0BIJgWKKfpigMwguqKAzhHQAFYAWoFQkFTSUNyCEdOQTRBMkJBEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Mar 14 - Sun, Mar 15 YYC Calgary PDX Portland CA $311 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:PDX,departure:14/03/2026TANYT&leg2=from:PDX,to:YYC,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:310.10&airProductToken=AQpFCiAIxJgBEgQ0MDcyGJgWIPISKJTNhwMwoM6HAzhFQABYAQohCMSYARIEMTI0NBjyEiDvuAEozNCHAzDB0YcDOEVAAVgBCkUKIQjEmAESBDEyNzAY77gBIPISKP3XhwMw8NiHAzhFQABYAQogCMSYARIEMzcwNRjyEiCYFiid2YcDMKTahwM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, Apr 9 - Thu, Apr 30 YYC Calgary SEA Seattle CA $319 Roundtrip found 6 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:SEA,departure:09/04/2026TANYT&leg2=from:SEA,to:YYC,departure:30/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:318.81&airProductToken=AQowCi4IwaYBEgQyMzA4GJgWIJIBKPz2iQMw6_eJAzhYQABYAWoCU1ZyCE9INU9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA) ### October is typically the cheapest month to fly From CA $193 - CA $305 per traveller. ![](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 Onalaska. 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 Onalaska. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Onalaska. 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 Onalaska 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 Onalaska. Looking to save even more? Get additional savings by bundling your Onalaska 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 Onalaska trip! ## Travel information | Destination airport | Portland Intl. | | ----------------------------- | -------------- | | Destination airport IATA code | PDX | | Destination city name | Portland | | Roundtrip price | CA $125 | ## Trending flights to Onalaska Prices were available within the past 7 days and start at CA $178 for one-way flights and CA $286 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Fri, May 22 - Mon, Jun 1 YYC Calgary SEA Seattle CA $286 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:SEA,departure:22/05/2026TANYT&leg2=from:SEA,to:YYC,departure:01/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:285.54&airProductToken=AQoiCiAI16YBEgQxNTUwGJgWIJIBKPXVjQMw6NaNAzhFQABYAQoiCiAI16YBEgQxNTUzGJIBIJgWKNrHjgMwvsiOAzhFQABYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) \*Available to Expedia members.