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Cheap flights from the United States to Thunder Bay from C$ 307

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YQT
21 Aug — 28 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Thunder Bay

Enter your travel dates to find the best prices.

Cheapest flights from USA to Thunder Bay
Explore the most affordable flight options available from USA to Thunder Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 July 2026.

Fri 18/98:55 a.m.
EWR
-
YQT
1 stop7h 40m
Porter Airlines
Fri 25/96:00 a.m.
YQT
-
EWR
2 stops9h 45m
Porter Airlines
Deal found 18/7C$ 501
Thu 17/911:20 a.m.
EWR
-
YQT
1 stop5h 15m
Porter Airlines
Sun 20/96:00 a.m.
YQT
-
EWR
1 stop6h 50m
Porter Airlines
Deal found 17/7C$ 513
Wed 2/93:55 p.m.
BOS
-
YQT
2 stops17h 00m
Multiple Airlines
Thu 10/910:10 a.m.
YQT
-
BOS
1 stop9h 31m
Multiple Airlines
Deal found 21/7C$ 563
Fri 4/93:55 p.m.
BOS
-
YQT
2 stops17h 00m
Multiple Airlines
Thu 10/910:10 a.m.
YQT
-
BOS
1 stop9h 31m
Multiple Airlines
Deal found 21/7C$ 566
Mon 10/83:50 p.m.
IAD
-
YQT
1 stop17h 05m
Multiple Airlines
Wed 12/86:30 a.m.
YQT
-
IAD
1 stop8h 40m
Multiple Airlines
Deal found 21/7C$ 611
Sat 5/98:10 p.m.
BOS
-
YQT
1 stop12h 45m
Multiple Airlines
Tue 8/910:10 a.m.
YQT
-
BOS
1 stop8h 25m
Multiple Airlines
Deal found 21/7C$ 624
Sun 27/99:00 a.m.
EWR
-
YQT
1 stop14h 03m
Air Canada
Thu 1/1011:45 a.m.
YQT
-
EWR
1 stop6h 32m
Air Canada
Deal found 18/7C$ 625
Sun 9/810:20 a.m.
MDW
-
YQT
1 stop5h 15m
Porter Airlines
Sun 30/88:15 a.m.
YQT
-
MDW
1 stop7h 20m
Porter Airlines
Deal found 19/7C$ 632
Sat 5/97:10 a.m.
BOS
-
YQT
1 stop5h 30m
Multiple Airlines
Thu 10/910:10 a.m.
YQT
-
BOS
1 stop9h 31m
Multiple Airlines
Deal found 21/7C$ 634
Mon 7/97:00 a.m.
BOS
-
YQT
1 stop6h 00m
Multiple Airlines
Thu 10/910:10 a.m.
YQT
-
BOS
1 stop9h 31m
Multiple Airlines
Deal found 21/7C$ 637
Tue 18/88:30 p.m.
BOS
-
YQT
1 stop16h 10m
Multiple Airlines
Tue 25/810:10 a.m.
YQT
-
BOS
1 stop8h 40m
Multiple Airlines
Deal found 19/7C$ 638
Tue 1/911:10 a.m.
BOS
-
YQT
1 stop5h 25m
Multiple Airlines
Thu 10/910:10 a.m.
YQT
-
BOS
1 stop9h 31m
Multiple Airlines
Deal found 21/7C$ 639

Find flight deals from USA to Thunder Bay

Keep the following information in mind while searching for USA to Thunder Bay flight deals. Data was last updated 22 July 2026.

Round-trip from

C$ 501

One-way from

C$ 307
Porter Airlines
  • Porter Airlines
  • 18/9-25/9
  • 3 total stops
  • 17h 25m total
  • USA to Thunder Bay
Search Deals
Air Canada
  • Air Canada
  • 1/9
  • 1 total stop
  • 6h 24m total
  • USA to Thunder Bay
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 629,999 searches. Data last updated 22 July 2026.
Use the filters below to find and compare flights from the United States to Thunder Bay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Fri 18/9

8:55 a.m.-4:35 p.m.

1 stop7h 40m

Thunder Bay

Fri 25/9

6:00 a.m.-3:45 p.m.

2 stops9h 45m

C$ 501

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Thu 17/9

11:20 a.m.-4:35 p.m.

1 stop5h 15m

Thunder Bay

Sun 20/9

6:00 a.m.-12:50 p.m.

1 stop6h 50m

C$ 513

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Sun 27/9

9:00 a.m.-11:03 p.m.

1 stop14h 03m

Thunder Bay

Thu 1/10

11:45 a.m.-6:17 p.m.

1 stop6h 32m

C$ 625

BostonThunder Bay

BOS - YQT

BOSYQT

Boston Logan Intl

Tue 18/8

8:30 p.m.-12:40 p.m.

1 stop16h 10m

Thunder Bay

Tue 25/8

10:10 a.m.-6:50 p.m.

1 stop8h 40m

C$ 638

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Thu 17/9

12:25 p.m.-10:33 p.m.

2 stops10h 08m

Thunder Bay

Sun 20/9

8:15 a.m.-12:50 p.m.

1 stop4h 35m

C$ 662
Quickest round-trip

Washington, D.C.Thunder Bay

IAD - YQT

IADYQT

Washington, D.C. Dulles Intl

Mon 17/8

11:25 a.m.-4:35 p.m.

1 stop5h 10m

Thunder Bay

Fri 21/8

6:00 a.m.-10:45 a.m.

1 stop4h 45m

C$ 706

ChicagoThunder Bay

MDW - YQT

MDWYQT

Chicago Midway

Wed 2/9

3:20 p.m.-9:45 p.m.

1 stop5h 25m

Thunder Bay

Sat 5/9

6:00 a.m.-11:00 a.m.

1 stop6h 00m

C$ 738

Washington, D.C.Thunder Bay

IAD - YQT

IADYQT

Washington, D.C. Dulles Intl

Tue 1/9

3:50 p.m.-9:45 p.m.

1 stop5h 55m

Thunder Bay

Sat 5/9

8:15 a.m.-3:10 p.m.

1 stop6h 55m

C$ 837

BostonThunder Bay

BOS - YQT

BOSYQT

Boston Logan Intl

Tue 11/8

10:05 a.m.-6:28 p.m.

1 stop8h 23m

Thunder Bay

Tue 18/8

8:15 a.m.-3:15 p.m.

1 stop7h 00m

C$ 849

BostonThunder Bay

BOS - YQT

BOSYQT

Boston Logan Intl

Thu 27/8

11:10 a.m.-4:35 p.m.

1 stop5h 25m

Thunder Bay

Mon 31/8

1:20 p.m.-7:50 p.m.

1 stop6h 30m

C$ 852

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/7

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight from USA to Thunder Bay

Have a flexible travel schedule? Discover the best time to fly to Thunder Bay from USA 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.

Cheapflights Insights

Everything you need to know about your flight from the United States to Thunder Bay

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from USA 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 airport do you fly into for flights to Thunder Bay from United States?

    Most people fly into Thunder Bay (YQT) if they book a flight to Thunder Bay from United States. Thunder Bay is conveniently located just 5.6 km from Thunder Bay’s city centre.

  • How long is the flight from USA to Thunder Bay?

    Porter Airlines and Air Canada can get you from USA to Thunder Bay in just under 6h 18m. Your travel time can differ by up to 1h 22m. The distance between USA and Thunder Bay is about 1468 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from USA to Thunder Bay?

    Most travellers choose Washington, D.C. Dulles Intl - Thunder Bay, Boston Logan Intl - Thunder Bay or Dallas/Fort Worth - Thunder Bay when deciding on the best route from USA to Thunder Bay.

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

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

  • How can I find direct flights from USA to Thunder Bay?

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

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

    Yes. Cheapflights offers flight deals from USA 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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Alternative routes for USA to Thunder Bay

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