What are the cheapest airlines to fly from Seattle to Thunder Bay one-way?

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $170. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from Seattle to Thunder Bay for a low price.

In terms of precipitation, rainfall in Thunder Bay ranges from 0.4 - 3.5 inches per month. July is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Thunder Bay when rainfall is around 0.4 in.

If weather is an important factor for your trip to Thunder Bay, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.8 F).

What is the cheapest time of day to fly from SEA to YQT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Thunder Bay as you normally would.

Can I find deals for flights from Seattle to Thunder Bay that include hotel bookings?

Yes. In addition to deals on Seattle to Thunder Bay flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Thunder Bay?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Thunder Bay.

Can I find deals for business class flights from Seattle to Thunder Bay?

Yes. Cheapflights offers flight deals from Seattle to Thunder Bay by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$170+ Flights from Seattle to Thunder Bay

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Cheap flight deals from Seattle to Thunder Bay

Round-trip from	$328 (FlightHub)
One-way from	$170 (Kiwi.com)

From Seattle/Tacoma Intl to Thunder Bay

Search Deals

One-way flight from Seattle/Tacoma Intl to Thunder Bay

Search Deals

Find flight deals from Seattle to Thunder Bay

Cheapest flights from Seattle to Thunder Bay
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 julio 28, 2025.

sáb. 8/237:35 pmSEA - YQT

1 stop20h 20mWestJet

sáb. 8/307:40 pmYQT - SEA

1 stop20h 18mWestJet

Deal found 7/26

$328

lun. 8/2512:05 pmSEA - YQT

1 stop7h 43mAir Canada

lun. 9/15:15 amYQT - SEA

2 stops12h 01mAir Canada

Deal found 7/28

$347

lun. 8/2511:58 pmSEA - YQT

2 stops12h 50mMultiple Airlines

lun. 9/15:15 amYQT - SEA

2 stops12h 01mMultiple Airlines

Deal found 7/28

$475

Best flights from Seattle to Thunder Bay
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 julio 28, 2025.

sáb. 8/237:35 pmSEA - YQT

1 stop20h 20mWestJet

sáb. 8/307:40 pmYQT - SEA

1 stop20h 18mWestJet

Deal found 7/26

$328

sáb. 8/237:35 pmSEA - YQT

1 stop20h 20mMultiple Airlines

sáb. 8/3011:45 amYQT - SEA

3 stops27h 50mMultiple Airlines

Deal found 7/26

$485

Last-minute flights from Seattle to Thunder Bay
Discover last-minute flight deals from Seattle to Thunder Bay. Data last updated julio 28, 2025 and is based on user searches.

sáb. 8/237:35 pmSEA - YQT

1 stop20h 20mWestJet

sáb. 8/307:40 pmYQT - SEA

1 stop20h 18mWestJet

Deal found 7/26

$328

lun. 8/2512:05 pmSEA - YQT

1 stop7h 43mAir Canada

lun. 9/15:15 amYQT - SEA

2 stops12h 01mAir Canada

Deal found 7/28

$347

lun. 8/2511:58 pmSEA - YQT

2 stops12h 50mMultiple Airlines

lun. 9/15:15 amYQT - SEA

2 stops12h 01mMultiple Airlines

Deal found 7/28

$475

One-way flights from Seattle to Thunder Bay
Search for one-way flight options from Seattle to Thunder Bay. Find affordable one-way fares based on user searches. Data last updated julio 28, 2025.

jue. 9/111:50 pmSEA - YQT

3 stops21h 59mWestJet

Deal found 7/28

$170

jue. 9/1112:00 pmSEA - YQT

1 stop7h 46mAir Canada

Deal found 7/28

$224

vie. 8/112:13 pmSEA - YQT

3 stops41h 37mMultiple Airlines

Deal found 7/27

$477

sáb. 8/27:05 amSEA - YQT

1 stop8h 50mDelta

Deal found 7/27

$532

sáb. 8/211:57 amSEA - YQT

3 stops24h 51mUnited Airlines

Deal found 7/27

$592

Fly from

Fly to

Route

Depart

Return

Price

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

sáb. 8/23

7:35 pm-6:55 pm

1 stop20h 20m

Thunder Bay

sáb. 8/30

7:40 pm-12:58 pm

1 stop20h 18m

$328

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

lun. 8/25

12:05 pm-10:48 pm

1 stop7h 43m

Thunder Bay

lun. 9/1

5:15 am-2:16 pm

2 stops12h 01m

$347

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

lun. 8/25

11:58 pm-3:48 pm

2 stops12h 50m

Thunder Bay

lun. 9/1

5:15 am-2:16 pm

2 stops12h 01m

$475

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

jue. 9/11

1:50 pm-2:49 pm

3 stops21h 59m

$170

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

jue. 9/11

12:00 pm-10:46 pm

1 stop7h 46m

$224

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

sáb. 8/2

7:05 am-6:55 pm

1 stop8h 50m

$532

SeattleThunder Bay

SEA - YQT

SEAYQT

Seattle/Tacoma Intl

sáb. 8/2

11:57 am-3:48 pm

3 stops24h 51m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

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.

Reviews of airlines servicing Thunder Bay

Read through reviews of airlines operating flights from Seattle to Thunder Bay, such as Delta, United Airlines, and WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,971 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,971 reviews

Delta

8.0

Very good

7,971 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,893 reviews

Delta

8.0

Very good

7,971 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

WestJet

7.2

Good

2,968 reviews

Delta

8.0

Very good

7,971 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,813 reviews

Delta

8.0

Very good

7,971 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Seattle to Thunder Bay one-way?
The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $170. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from Seattle to Thunder Bay for a low price.
Can I find deals for flights from Seattle to Thunder Bay that include hotel bookings?
Yes. In addition to deals on Seattle to Thunder Bay flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Thunder Bay?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Thunder Bay.
Can I find deals for business class flights from Seattle to Thunder Bay?
Yes. Cheapflights offers flight deals from Seattle to Thunder Bay by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$170+ Cheap flights from Seattle (SEA) to Thunder Bay (YQT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Thunder Bay with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Thunder Bay

Round-trip from

One-way from

Find flight deals from Seattle to Thunder Bay

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 julio 28, 2025.

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 julio 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Thunder Bay that are best for you.

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.

Reviews of airlines servicing Thunder Bay

Read through reviews of airlines operating flights from Seattle to Thunder Bay, such as Delta, United Airlines, and WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Seattle to Thunder Bay one-way?

Can I find deals for flights from Seattle to Thunder Bay that include hotel bookings?

How can I find direct flights from Seattle to Thunder Bay?

Can I find deals for business class flights from Seattle to Thunder Bay?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Thunder Bay

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Seattle to Thunder Bay
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 julio 28, 2025.