Which airports can I use when flying from Seattle to Thunder Bay?

Flights from Seattle to Thunder Bay usually depart from Seattle/Tacoma Intl (SEA) and arrive at Thunder Bay (YQT).

Which airports do connecting flights from Seattle to Thunder Bay pass through?

Most connecting flights from Seattle to Thunder Bay pass through Calgary (YYC), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Seattle to Thunder Bay?

Yes. Flexible dates can save you up to 62% on flights from Seattle to Thunder Bay. Tuesday is the cheapest departure day at $381 round-trip on average, while Wednesday is the most expensive at $988, a difference of $607. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Do I need a passport to fly from Seattle to Thunder Bay?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Seattle to Thunder Bay changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $664 to $1,397. That means the highest observed fare was about 2x higher than the lowest one.

What is the time difference between Seattle and Thunder Bay?

Thunder Bay is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Thunder Bay Airport (YQT)?

Thunder Bay Airport (YQT) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include: • Enterprise Rent-A-Car • National • Budget • Avis • Driving Force

Which airline is the cheapest to fly from Seattle to Thunder Bay?

Air Canada ($838) and WestJet ($916) are the cheapest airlines to fly round-trip from Seattle to Thunder Bay according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Seattle to Thunder Bay?

Flights via Calgary (YYC) offer the most affordable fares, with an average round-trip price of $506. Based on KAYAK data over the past 3 months.

When flying from Seattle to Thunder Bay which airport offers the shortest layover?

Calgary (YYC) had the shortest average connection time for Seattle to Thunder Bay layovers at 12h 23m over the past 3 months.

$664 CHEAP FLIGHTS from Seattle to Thunder Bay (SEA - YQT)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$664

Typical prices: $381-$676

Multiple Airlines

Thu 11/15Thu 11/22

SEA - YQT • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Thunder Bay!

Flight Deals

Cheap Flights from Seattle to Thunder Bay (SEA-YQT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Seattle to Thunder Bay

Sun, Nov 15 - Sun, Nov 22

8:19 am - 10:54 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

11h 35m1 stop Toronto Pearson Intl

4:40 pm - 7:07 amYQT Thunder Bay-SEA Seattle/Tacoma Intl

17h 27m2 stops Winnipeg Vancouver Intl

$664Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

8:19 am - 10:54 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

11h 35m1 stop Toronto Pearson Intl

6:20 am - 7:47 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

16h 27m1 stop Toronto Pearson Intl

$791Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

8:40 am - 10:36 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

10h 56m2 stops Vancouver Intl Toronto Pearson Intl

5:15 pm - 9:32 amYQT Thunder Bay-SEA Seattle/Tacoma Intl

19h 17m2 stops Toronto Pearson Intl Vancouver Intl

$838Air Canada

Tue, Oct 20 - Sat, Oct 24

7:35 pm - 6:45 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

20h 10m2 stops Calgary Winnipeg

7:20 pm - 2:40 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

46h 20m2 stops Winnipeg Calgary

$916WestJet

Tue, Oct 20 - Sat, Oct 24

7:15 pm - 10:48 amSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 33m2 stops Vancouver Intl Toronto Pearson Intl

11:45 am - 10:47 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

14h 02m2 stops Toronto Pearson Intl Vancouver Intl

$945Air Canada

Tue, Oct 20 - Sat, Oct 24

7:55 am - 10:58 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 03m1 stop Toronto Pearson Intl

11:45 am - 10:47 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

14h 02m2 stops Toronto Pearson Intl Vancouver Intl

$987Air Canada

Tue, Oct 20 - Sat, Oct 24

7:55 am - 10:58 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 03m1 stop Toronto Pearson Intl

11:45 am - 9:39 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

12h 54m1 stop Toronto Pearson Intl

$1,005Air Canada

Tue, Oct 20 - Sat, Oct 24

7:15 pm - 10:48 amSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 33m2 stops Vancouver Intl Toronto Pearson Intl

11:45 am - 10:47 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

14h 02m2 stops Toronto Pearson Intl Vancouver Intl

$1,021Air Canada

Tue, Oct 20 - Sat, Oct 24

7:55 am - 10:58 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 03m1 stop Toronto Pearson Intl

11:45 am - 10:47 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

14h 02m2 stops Toronto Pearson Intl Vancouver Intl

$1,062Air Canada

Tue, Oct 20 - Sat, Oct 24

7:55 am - 10:58 pmSEA Seattle/Tacoma Intl-YQT Thunder Bay

12h 03m1 stop Toronto Pearson Intl

11:45 am - 9:39 pmYQT Thunder Bay-SEA Seattle/Tacoma Intl

12h 54m1 stop Toronto Pearson Intl

$1,081Air Canada

Booking Insights

Price, demand and travel trends for Seattle to Thunder Bay flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Airlines

Layovers

Which airline is the cheapest to fly from Seattle to Thunder Bay?: Air Canada ($838) and WestJet ($916) are the cheapest airlines to fly round-trip from Seattle to Thunder Bay according to KAYAK data over the last 5 days.

Find deals

Cheapest flight	$664

Round-trip flight from Seattle to Thunder Bay

When to book flights from Seattle to Thunder Bay

Are your dates flexible? Find out the best times to travel from Seattle to Thunder Bay based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Do I need a passport to fly from Seattle to Thunder Bay?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Seattle to Thunder Bay changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $664 to $1,397. That means the highest observed fare was about 2x higher than the lowest one.
What car rental options are available at Thunder Bay Airport (YQT)?
Thunder Bay Airport (YQT) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:

• Enterprise Rent-A-Car
• National
• Budget
• Avis
• Driving Force
Which airports can I use when flying from Seattle to Thunder Bay?
Flights from Seattle to Thunder Bay usually depart from Seattle/Tacoma Intl (SEA) and arrive at Thunder Bay (YQT).
Which airports do connecting flights from Seattle to Thunder Bay pass through?
Most connecting flights from Seattle to Thunder Bay pass through Calgary (YYC), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Seattle to Thunder Bay?
Yes. Flexible dates can save you up to 62% on flights from Seattle to Thunder Bay. Tuesday is the cheapest departure day at $381 round-trip on average, while Wednesday is the most expensive at $988, a difference of $607.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Seattle and Thunder Bay?
Thunder Bay is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average $381, about $607 less than Wednesday fares (61% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Thunder Bay Airport.

• Valhalla Hotel & Conference Centre
• Superior Inn Hotel and Conference Centre Thunder Bay
• Ramada by Wyndham Thunder Bay Airlane Hotel

More options for your flight from Seattle to Thunder Bay

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Complete your trip to Thunder Bay with a hotel stay or car rental

Car rentals in Thunder Bay

Hotels in Thunder Bay

SEA - YQT

$664 Find Cheap Flights from Seattle to Thunder Bay - Compare and Save

Everything you should know

Cheap Flights from Seattle to Thunder Bay (SEA-YQT)

Recent round-trip flight deals from Seattle to Thunder Bay

Recent one-way flight deals from Seattle to Thunder Bay

Price, demand and travel trends for Seattle to Thunder Bay flights

Which airline is the cheapest to fly from Seattle to Thunder Bay?

What is the cheapest layover airport when flying from Seattle to Thunder Bay?

When flying from Seattle to Thunder Bay which airport offers the shortest layover?

Key details for Seattle to Thunder Bay flights

Cheapest flight

When to book flights from Seattle to Thunder Bay

Your Seattle to Thunder Bay flight questions, answered

Your guide to booking Seattle to Thunder Bay flights

More options for your flight from Seattle to Thunder Bay

Complete your trip to Thunder Bay with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Thunder Bay

Find direct flights to and from Seattle and Thunder Bay

Flights from domestic origins to Thunder Bay

Flights to other popular destinations