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Cheap flights from Seattle to Thunder Bay from $257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Thunder Bay departing on 6/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Thunder Bay

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:50 pm - 6:45 pm
YQT
-
SEA
25h 55m
1 stop
$447WestJet
Thu, May 28 - Thu, Jun 4
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:50 pm - 9:40 am
YQT
-
SEA
16h 50m
1 stop
$464WestJet
Sat, May 2 - Mon, May 4
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:50 pm - 9:40 am
YQT
-
SEA
16h 50m
1 stop
$467WestJet
Sat, May 2 - Mon, May 4
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:20 pm - 6:45 pm
YQT
-
SEA
26h 25m
2 stops
$506WestJet
Sat, May 2 - Mon, May 4
WestJet Logo
10:30 am - 6:45 pm
SEA
-
YQT
29h 15m
2 stops
WestJet Logo
7:50 pm - 9:40 am
YQT
-
SEA
16h 50m
1 stop
$526WestJet
Thu, May 28 - Thu, Jun 4
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
3 stops
$582WestJet
Thu, May 28 - Thu, Jun 4
WestJet Logo
7:35 pm - 7:00 pm
SEA
-
YQT
20h 25m
1 stop
WestJet Logo
7:50 pm - 6:45 pm
YQT
-
SEA
25h 55m
1 stop
$611WestJet
Sat, May 2 - Mon, May 4
Multiple Airlines Logo
7:55 am - 10:38 pm
SEA
-
YQT
11h 43m
1 stop
Multiple Airlines Logo
11:00 am - 6:45 pm
YQT
-
SEA
10h 45m
2 stops
$619Multiple Airlines
Tue, May 12 - Tue, May 19
WestJet Logo
7:35 pm - 10:25 am
SEA
-
YQT
35h 50m
2 stops
WestJet Logo
7:20 pm - 6:45 pm
YQT
-
SEA
26h 25m
2 stops
$626WestJet
Sat, May 2 - Mon, May 4
WestJet Logo
7:35 pm - 10:25 am
SEA
-
YQT
35h 50m
2 stops
WestJet Logo
7:20 pm - 9:40 am
YQT
-
SEA
17h 20m
2 stops
$629WestJet
Sat, May 2 - Mon, May 4

WestJet flights from Seattle to Thunder Bay

Our best WestJet deals on Seattle to Thunder Bay flight tickets
WestJet
May 28
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
Jun 4
YQT7:50 pmThunder Bay
25h 55m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$447
WestJet
May 2
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
May 4
YQT7:50 pmThunder Bay
16h 50m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$467
WestJet
Jun 4
SEA7:35 pmSeattle/Tacoma Intl
20h 25m
1 stop
YQT7:00 pmThunder Bay
Jun 8
YQT7:50 pmThunder Bay
25h 55m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$488

Air Canada flights from Seattle to Thunder Bay

Our best Air Canada deals on Seattle to Thunder Bay flight tickets
Air Canada
May 12
SEA5:50 amSeattle/Tacoma Intl
14h 25m
2 stops
YQT11:15 pmThunder Bay
May 19
YQT5:10 amThunder Bay
12h 10m
2 stops
SEA2:20 pmSeattle/Tacoma Intl
$667
Air Canada
May 12
SEA8:00 amSeattle/Tacoma Intl
12h 15m
1 stop
YQT11:15 pmThunder Bay
May 19
YQT11:45 amThunder Bay
12h 23m
1 stop
SEA9:08 pmSeattle/Tacoma Intl
$687
Air Canada
May 8
SEA8:00 amSeattle/Tacoma Intl
12h 15m
1 stop
YQT11:15 pmThunder Bay
May 15
YQT11:45 amThunder Bay
12h 23m
1 stop
SEA9:08 pmSeattle/Tacoma Intl
$718

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 April 15, 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

Thu 5/28

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Thu 6/4

7:50 pm-6:45 pm

1 stop25h 55m

$447

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Mon 5/4

7:50 pm-9:40 am

1 stop16h 50m

$464

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Mon 5/4

7:50 pm-9:40 am

1 stop16h 50m

$467

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Mon 5/4

7:20 pm-6:45 pm

2 stops26h 25m

$506

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Thu 5/28

10:30 am-6:45 pm

2 stops29h 15m

Thunder Bay

Thu 6/4

7:50 pm-9:40 am

1 stop16h 50m

$526

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Thu 5/28

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Thu 6/4

11:00 am-6:45 pm

3 stops10h 45m

$582

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-7:00 pm

1 stop20h 25m

Thunder Bay

Mon 5/4

7:50 pm-6:45 pm

1 stop25h 55m

$611
Quickest round-trip

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Tue 5/12

7:55 am-10:38 pm

1 stop11h 43m

Thunder Bay

Tue 5/19

11:00 am-6:45 pm

2 stops10h 45m

$619

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-10:25 am

2 stops35h 50m

Thunder Bay

Mon 5/4

7:20 pm-6:45 pm

2 stops26h 25m

$626

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-10:25 am

2 stops35h 50m

Thunder Bay

Mon 5/4

7:20 pm-9:40 am

2 stops17h 20m

$629

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Thunder Bay?

WestJet and Air Canada are the most popular carriers operating from Seattle/Tacoma Intl to Thunder Bay

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

7h 57m

Direct flights

None
The fastest flight from Seattle to Thunder Bay takes 7h 57m
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 7h 57m 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.

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