Title: CA $338 Cheap Flights from Seattle (SEA) to Thunder Bay (YQT) - Expedia.ca ![Isle Royal Land Mass know as the Sleeping Giant Thunder Bay, Ontario, Canada](https://images.trvl-media.com/place/4054/9c76b79c-e95a-4318-a349-11b7e7586a53.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) # CA $338 Cheap Flights from Seattle (SEA) to Thunder Bay (YQT) [View CA $338 flight on Sat, Dec 6, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:YQT,departure:06/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:338.00&airProductToken=AQpnCi4IwaYBEgMzODUYkgEgmM4BKNv__gIw84H_AjhHQABYAWoCTUFyCEdIMk9YVU1OCjUI0IgBEgMyMjUYmM4BIJicASjeg_8CMNGE_wI4WEABWAFqCFNUQU5EQVJEcghYMkEwWlJMUxIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) - [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 ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Thunder Bay, ON (YQT-Thunder Bay Intl.) - ![Air Canada](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:sea,to:yqt,departure:18/10/2025TANYT&leg2=from:yqt,to:sea,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![United](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:sea,to:yqt,departure:18/10/2025TANYT&leg2=from:yqt,to:sea,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:yqt,departure:18/10/2025TANYT&leg2=from:yqt,to:sea,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) ![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 30% 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.ca/login) ## Cheap flights from Seattle (SEA) to Thunder Bay (YQT) Prices were available within the past 7 days and start at CA $338 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ## Frequently asked questions ### How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to YQT? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Sea-Tac Airport and Thunder Bay Intl. Airport was . Fares this cheap don't stick around for long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to YQT? > Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Sea-Tac Airport to Thunder Bay Intl. Airport (YQT) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the cost difference between the two flights. When looking for SEA to YQT flights, you'll find a "No change fees" filter for you to select. ### How many hours is the flight from SEA to YQT? > There are plenty of ways to make the 6 hours and 41 minutes between Sea-Tac Airport and YQT fly by. If you want to be productive, organize your camera roll or delete all those unwanted emails. A good snooze also helps pass the time! ### How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Thunder Bay Intl. Airport (YQT)? > Expect to be cruising at altitude for a while, as the flight distance between Sea-Tac Airport and Thunder Bay Intl. Airport is 2,400 kilometres. Create a playlist of your favourite songs before you leave home to keep yourself entertained during your journey. ### Which airlines fly direct from Sea-Tac Airport to Thunder Bay Intl. Airport (YQT)? > Unfortunately, there are no airlines that fly direct between Sea-Tac Airport and Thunder Bay Intl. Airport. You'll have to book a flight with one or more stops. ### Are Sea-Tac Airport to Thunder Bay Intl. Airport flight tickets cheaper when they're purchased at the last minute? > Flight tickets from Sea-Tac Airport to Thunder Bay Intl. Airport are available up to a year before departure on Expedia. And although you may pick up great last-minute deal, it's never a sure thing. Also, booking your flights ahead of time means you'll have more choices — and you can avoid getting trapped in the dreaded middle seat! We regularly update our fares to make sure you get the biggest bargains, so check back often for all the latest specials. ## Travel information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Thunder Bay Intl. | | Distance | 2427 km | ## Book with confidence ### Seattle to Thunder Bay Flights **The easy way to book your flights from Seattle to Thunder Bay**  With Expedia, it’s simple to find and book flights to Thunder Bay from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 16 airlines that cover this route. There are nonstop flights to Thunder Bay Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Thunder Bay today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Thunder Bay Intl., YQT**  Sort your search results by price to find great deals on your flight from Seattle to Thunder Bay—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Thunder Bay from Seattle currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Thunder Bay   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Thunder Bay from Seattle**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Thunder Bay with Expedia today. ## Explore a world of travel with Expedia - Flights - [Flights from Duluth to Thunder Bay](https://www.expedia.ca/lp/flights/1029/4054/duluth-to-thunder-bay) - [Flights from Atikokan to Thunder Bay](https://www.expedia.ca/lp/flights/10576/4054/atikokan-to-thunder-bay) - [Flights from Kitchener to Thunder Bay](https://www.expedia.ca/lp/flights/10579/4054/kitchener-to-thunder-bay) - [Flights from Yorkton to Thunder Bay](https://www.expedia.ca/lp/flights/10602/4054/yorkton-to-thunder-bay) - [Flights from Revelstoke to Thunder Bay](https://www.expedia.ca/lp/flights/10607/4054/revelstoke-to-thunder-bay) - [Flights from Ignace to Thunder Bay](https://www.expedia.ca/lp/flights/10686/4054/ignace-to-thunder-bay) - [Flights from Galveston to Thunder Bay](https://www.expedia.ca/lp/flights/1341/4054/galveston-to-thunder-bay) - [Flights from Anchorage to Thunder Bay](https://www.expedia.ca/lp/flights/178230/4054/anchorage-to-thunder-bay) - [Flights from Beijing to Thunder Bay](https://www.expedia.ca/lp/flights/178237/4054/beijing-to-thunder-bay) - [Flights from Calgary to Thunder Bay](https://www.expedia.ca/lp/flights/178245/4054/calgary-to-thunder-bay) - [Flights from Cleveland to Thunder Bay](https://www.expedia.ca/lp/flights/178250/4054/cleveland-to-thunder-bay) - [Flights from Manila to Thunder Bay](https://www.expedia.ca/lp/flights/178282/4054/manila-to-thunder-bay) - [Flights from Nashville to Thunder Bay](https://www.expedia.ca/lp/flights/178291/4054/nashville-to-thunder-bay) - [Flights from Ottawa to Thunder Bay](https://www.expedia.ca/lp/flights/178296/4054/ottawa-to-thunder-bay) - [Flights from Phoenix to Thunder Bay](https://www.expedia.ca/lp/flights/178298/4054/phoenix-to-thunder-bay) - [Flights from San Antonio to Thunder Bay](https://www.expedia.ca/lp/flights/178303/4054/san-antonio-to-thunder-bay) - [Flights from Toronto to Thunder Bay](https://www.expedia.ca/lp/flights/178314/4054/toronto-to-thunder-bay) - [Flights from Vancouver to Thunder Bay](https://www.expedia.ca/lp/flights/178315/4054/vancouver-to-thunder-bay) - [Flights from Venice to Thunder Bay](https://www.expedia.ca/lp/flights/179981/4054/venice-to-thunder-bay) - [Flights from Delhi to Thunder Bay](https://www.expedia.ca/lp/flights/180000/4054/delhi-to-thunder-bay) - [Flights from Puerto Vallarta to Thunder Bay](https://www.expedia.ca/lp/flights/180016/4054/puerto-vallarta-to-thunder-bay) - [Flights from Kos to Thunder Bay](https://www.expedia.ca/lp/flights/1804/4054/kos-to-thunder-bay) - [Flights from Kingfisher Lake to Thunder Bay](https://www.expedia.ca/lp/flights/1816/4054/kingfisher-lake-to-thunder-bay) - [Flights from Ignacio to Thunder Bay](https://www.expedia.ca/lp/flights/183043/4054/ignacio-to-thunder-bay) - [Flights from Loreto to Thunder Bay](https://www.expedia.ca/lp/flights/2152/4054/loreto-to-thunder-bay) - [Flights from Medan to Thunder Bay](https://www.expedia.ca/lp/flights/2263/4054/medan-to-thunder-bay) - [Flights from Rajkot to Thunder Bay](https://www.expedia.ca/lp/flights/2937/4054/rajkot-to-thunder-bay) - [Flights from Sault Ste. 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