$560+ Cheap flights from Seattle (SEA) to Thunder Bay (YQT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YQT
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Thunder Bay
Cheapest
Best
Last-minute
Cheapest flights from Seattle to Thunder BayExplore the most affordable flight options available from Seattle to Thunder Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Seattle to Thunder Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This WestJet deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:35 pm -
2 stops20h 10m
Thu 10/227:50 pm -
1 stop25h 55m
Deal found 9/7![WestJet logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
1 stop20h 25m
Thu 10/296:20 am -
2 stops29h 00m
Deal found 9/7![Multiple Airlines logo]()
$591
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
1 stop20h 25m
Thu 10/294:40 pm -
3 stops25h 00m
Deal found 9/7![WestJet logo]()
$618
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:35 pm -
3 stops20h 10m
Mon 10/1911:00 am -
2 stops10h 45m
Deal found 9/7![WestJet logo]()
$632
Best flights from Seattle to Thunder BayDiscover carefully curated flight deals from Seattle to Thunder Bay that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Seattle to Thunder Bay that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This WestJet deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:35 pm -
2 stops20h 10m
Thu 10/227:50 pm -
1 stop25h 55m
Deal found 9/7![WestJet logo]()
$560
This Gotogate deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
1 stop20h 25m
Thu 10/296:20 am -
1 stop16h 23m
Deal found 9/7![Multiple Airlines logo]()
$713
This Air Canada deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:15 pm -
2 stops12h 33m
Sat 10/2411:45 am -
2 stops14h 02m
Deal found 9/4![Air Canada logo]()
$721
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
2 stops20h 10m
Thu 10/294:40 pm -
3 stops25h 00m
Deal found 9/7![WestJet logo]()
$656
This WestJet deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:35 pm -
2 stops20h 10m
Sat 10/247:20 pm -
2 stops46h 20m
Deal found 9/5![WestJet logo]()
$656
This Air Canada deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:55 am -
1 stop12h 03m
Thu 10/2211:45 am -
1 stop12h 19m
Deal found 9/6![Air Canada logo]()
$760
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:35 pm -
2 stops20h 10m
Mon 10/1911:00 am -
2 stops10h 45m
Deal found 9/7![WestJet logo]()
$676
Last-minute flights from Seattle to Thunder BayDiscover last-minute flight deals from Seattle to Thunder Bay. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Thunder Bay. Data last updated September 8, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:35 pm -
3 stops20h 10m
Mon 10/1911:00 am -
2 stops10h 45m
Deal found 9/7![WestJet logo]()
$632
This WestJet deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:35 pm -
2 stops20h 10m
Thu 10/227:50 pm -
1 stop25h 55m
Deal found 9/7![WestJet logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
1 stop20h 25m
Thu 10/296:20 am -
2 stops29h 00m
Deal found 9/7![Multiple Airlines logo]()
$591
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm -
1 stop20h 25m
Thu 10/294:40 pm -
3 stops25h 00m
Deal found 9/7![WestJet logo]()
$618
Find flight deals from Seattle to Thunder Bay
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Thunder Bay (YQT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Round-trip from | $582 (WestJet) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Thunder Bay that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Seattle to Thunder Bay that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Tue 10/20
7:35 pm-6:45 pm
2 stops20h 10m
Thunder Bay
Thu 10/22
7:50 pm-6:45 pm
1 stop25h 55m
$560
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Thu 10/22
7:35 pm-6:45 pm
2 stops20h 10m
Thunder Bay
Thu 10/29
4:40 pm-2:40 pm
3 stops25h 00m
$656
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Tue 10/20
7:35 pm-6:45 pm
2 stops20h 10m
Thunder Bay
Sat 10/24
7:20 pm-2:40 pm
2 stops46h 20m
$656
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Tue 10/13
7:35 pm-6:45 pm
2 stops20h 10m
Thunder Bay
Mon 10/19
11:00 am-6:45 pm
2 stops10h 45m
$676
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Thu 10/22
7:35 pm-7:00 pm
1 stop20h 25m
Thunder Bay
Thu 10/29
6:20 am-7:43 pm
1 stop16h 23m
$713
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Tue 10/20
7:15 pm-10:48 am
2 stops12h 33m
Thunder Bay
Sat 10/24
11:45 am-10:47 pm
2 stops14h 02m
$721
Quickest round-trip
SeattleThunder Bay
SEA Seattle/Tacoma Intl - YQT Thunder Bay
SEAYQT
Seattle/Tacoma Intl
Tue 10/20
7:55 am-10:58 pm
1 stop12h 03m
Thunder Bay
Thu 10/22
11:45 am-9:04 pm
1 stop12h 19m
$760
Sorted by cheapest first
Best time to book a flight from Seattle to Thunder Bay
Have a flexible travel schedule? Discover the best time to fly to Thunder Bay from Seattle with our price prediction graph.
SEA-YQT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Seattle to Thunder Bay. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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