Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Thunder Bay from $542

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Thunder Bay departing on 8/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Thunder Bay

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
Multiple Airlines Logo
6:30 am - 6:45 pm
YQT
-
SEA
15h 15m
2 stops
$542Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
11:00 am - 6:45 pm
YQT
-
SEA
10h 45m
2 stops
$570WestJet
Wed, Sep 9 - Wed, Sep 16
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:20 pm - 9:40 am
YQT
-
SEA
17h 20m
3 stops
$575WestJet
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
Multiple Airlines Logo
7:50 pm - 7:20 am
YQT
-
SEA
14h 30m
1 stop
$595Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
Multiple Airlines Logo
6:30 am - 6:45 pm
YQT
-
SEA
15h 15m
3 stops
$605Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
11:00 am - 6:45 pm
YQT
-
SEA
10h 45m
2 stops
$626WestJet
Sat, Sep 26 - Wed, Sep 30
Multiple Airlines Logo
10:30 am - 8:55 am
SEA
-
YQT
19h 25m
2 stops
Multiple Airlines Logo
7:20 pm - 6:45 pm
YQT
-
SEA
26h 25m
3 stops
$634Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Air Canada Logo
5:50 am - 10:48 pm
SEA
-
YQT
13h 58m
2 stops
Air Canada Logo
5:05 am - 2:22 pm
YQT
-
SEA
12h 17m
2 stops
$665Air Canada
Tue, Sep 29 - Wed, Sep 30
Air Canada Logo
5:50 am - 10:48 pm
SEA
-
YQT
13h 58m
2 stops
Air Canada Logo
11:45 am - 9:04 pm
YQT
-
SEA
12h 19m
1 stop
$683Air Canada
Tue, Sep 29 - Wed, Sep 30
WestJet Logo
7:35 pm - 6:45 pm
SEA
-
YQT
20h 10m
3 stops
WestJet Logo
7:20 pm - 9:40 am
YQT
-
SEA
17h 20m
3 stops
$684WestJet
Wed, Sep 9 - Wed, Sep 16

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from Seattle to Thunder Bay

Our best Air Canada deals on Seattle to Thunder Bay flight tickets
Air Canada
Sep 29
SEA5:50 amSeattle/Tacoma Intl
13h 58m
2 stops
YQT10:48 pmThunder Bay
Sep 30
YQT5:05 amThunder Bay
12h 17m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$665
Air Canada
Sep 29
SEA5:50 amSeattle/Tacoma Intl
13h 58m
2 stops
YQT10:48 pmThunder Bay
Sep 30
YQT11:45 amThunder Bay
12h 19m
1 stop
SEA9:04 pmSeattle/Tacoma Intl
$683
Air Canada
Sep 29
SEA8:00 amSeattle/Tacoma Intl
11h 48m
1 stop
YQT10:48 pmThunder Bay
Sep 30
YQT5:05 amThunder Bay
18h 59m
1 stop
SEA9:04 pmSeattle/Tacoma Intl
$702

WestJet flights from Seattle to Thunder Bay

Our best WestJet deals on Seattle to Thunder Bay flight tickets
WestJet
Sep 9
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
Sep 16
YQT11:00 amThunder Bay
10h 45m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$570
WestJet
Sep 9
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
Sep 16
YQT7:20 pmThunder Bay
17h 20m
3 stops
SEA9:40 amSeattle/Tacoma Intl
$575
WestJet
Sep 26
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
Sep 30
YQT11:00 amThunder Bay
10h 45m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$626

momondo 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, momondo users made 832,500 searches. Data last updated July 9, 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

Price

Cheapest round-trip

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 8/22

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Sat 8/29

6:30 am-6:45 pm

2 stops15h 15m

$542

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Wed 9/9

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Wed 9/16

11:00 am-6:45 pm

2 stops10h 45m

$570

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Wed 9/9

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Wed 9/16

7:20 pm-9:40 am

3 stops17h 20m

$575

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 8/22

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Sat 8/29

7:50 pm-7:20 am

1 stop14h 30m

$595

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 8/22

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Sat 8/29

6:30 am-6:45 pm

3 stops15h 15m

$605

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 9/26

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Wed 9/30

11:00 am-6:45 pm

2 stops10h 45m

$626

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Wed 9/9

10:30 am-8:55 am

2 stops19h 25m

Thunder Bay

Wed 9/16

7:20 pm-6:45 pm

3 stops26h 25m

$634
Quickest round-trip

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Tue 9/29

5:50 am-10:48 pm

2 stops13h 58m

Thunder Bay

Wed 9/30

5:05 am-2:22 pm

2 stops12h 17m

$665

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Tue 9/29

5:50 am-10:48 pm

2 stops13h 58m

Thunder Bay

Wed 9/30

11:45 am-9:04 pm

1 stop12h 19m

$683

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Wed 9/9

7:35 pm-6:45 pm

3 stops20h 10m

Thunder Bay

Wed 9/16

7:20 pm-9:40 am

3 stops17h 20m

$684

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Thunder Bay from

How to get the cheapest flight ticket from Seattle to Thunder Bay

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Seattle to Thunder Bay flights?

You could potentially save up to 43% on your flight if you consider stops on a Seattle to Thunder Bay flight.

When to book flights from Seattle to Thunder Bay

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Thunder Bay according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Thunder Bay (SEA to YQT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Thunder Bay

Fastest flight time

20h 25m

Direct flights

None
The fastest flight from Seattle to Thunder Bay takes 20h 25m
There are no direct flights from Seattle to Thunder Bay. There are no popular flight routes from Seattle to Thunder Bay.
Search flight deals

Frequently asked questions about flying from Seattle to Thunder Bay

  • How far is Seattle/Tacoma Intl to Thunder Bay by plane?

    The distance between Seattle/Tacoma Intl and Thunder Bay is about 1517.8 mi. Typically, this will take 20h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Thunder Bay Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Thunder Bay Airport are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Thunder Bay Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Thunder Bay Airport.

  • What documentation or ID do you need to fly to Thunder Bay Airport?

    The required travel and health documents for your Thunder Bay Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thunder Bay Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Thunder Bay?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Thunder Bay for you.

Can I find flights from Seattle to Thunder Bay with flexible booking policies on momondo?

momondo does allow users to show only those flights to Thunder Bay from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Thunder Bay?

Once all potential Seattle to Thunder Bay flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Thunder Bay right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Thunder Bay flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Thunder Bay trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/8
Sat 8/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada