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Cheap flights from the United States to Thunder Bay from C$ 195

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YQT
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap 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 16 September 2025.

Round-trip from

C$ 555

One-way from

C$ 195
Porter Airlines
  • Porter Airlines
  • 15/10-22/10
  • 3 total stops
  • 35h 41m total
  • USA to Thunder Bay
Search Deals
30/10
  • 30/10
  • 3 total stops
  • 48h 33m total
  • USA to Thunder Bay
Search Deals

Find flight deals from USA to Thunder Bay

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 16 September 2025.

Wed 15/104:20 p.m.IAD - YQT
2 stops18h 50mPorter Airlines
Wed 22/105:25 p.m.YQT - IAD
1 stop16h 51mPorter Airlines
Deal found 15/9C$ 555
Sun 12/1011:35 a.m.IAD - YQT
2 stops9h 15mPorter Airlines
Sat 18/107:40 a.m.YQT - IAD
1 stop7h 26mPorter Airlines
Deal found 15/9C$ 583
Sun 12/1011:35 a.m.IAD - YQT
2 stops9h 15mPorter Airlines
Thu 16/105:25 p.m.YQT - IAD
1 stop16h 51mPorter Airlines
Deal found 15/9C$ 590
Wed 8/1012:00 p.m.EWR - YQT
2 stops8h 50mPorter Airlines
Sun 12/102:05 p.m.YQT - EWR
1 stop6h 50mPorter Airlines
Deal found 14/9C$ 606
Fri 10/107:50 a.m.EWR - YQT
2 stops13h 00mPorter Airlines
Sun 12/107:40 a.m.YQT - EWR
1 stop6h 40mPorter Airlines
Deal found 14/9C$ 624
Thu 9/108:55 a.m.EWR - YQT
1 stop4h 43mPorter Airlines
Sun 12/102:05 p.m.YQT - EWR
1 stop6h 50mPorter Airlines
Deal found 14/9C$ 626
Wed 8/1012:00 p.m.EWR - YQT
1 stop4h 41mPorter Airlines
Sat 11/107:40 a.m.YQT - EWR
1 stop4h 50mPorter Airlines
Deal found 14/9C$ 669
Thu 9/104:15 p.m.EWR - YQT
3 stops18h 55mPorter Airlines
Sat 11/107:40 a.m.YQT - EWR
1 stop4h 50mPorter Airlines
Deal found 14/9C$ 682
Tue 2/128:55 a.m.EWR - YQT
1 stop6h 37mPorter Airlines
Wed 10/128:00 a.m.YQT - EWR
1 stop7h 00mPorter Airlines
Deal found 16/9C$ 693
Wed 8/103:05 p.m.EWR - YQT
1 stop6h 08mPorter Airlines
Fri 10/107:00 a.m.YQT - EWR
2 stops11h 45mPorter Airlines
Deal found 14/9C$ 716
Sun 12/1012:46 p.m.IAD - YQT
3 stops30h 08mMultiple Airlines
Thu 16/107:00 a.m.YQT - IAD
2 stops8h 06mMultiple Airlines
Deal found 15/9C$ 732
Mon 29/99:35 a.m.MDW - YQT
1 stop24h 20mMultiple Airlines
Thu 2/1010:15 a.m.YQT - MDW
2 stops24h 25mMultiple Airlines
Deal found 16/9C$ 734

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 16 September 2025.
Use the filters below to find and compare flights from the United States to Thunder Bay that are best for you.

Fly from

USA

Fly to

Thunder Bay

Route

Depart

Return

Price

Washington, D.C.Thunder Bay

IAD - YQT

IADYQT

Washington, D.C. Dulles Intl

Wed 15/10

4:20 p.m.-11:10 a.m.

2 stops18h 50m

Thunder Bay

Wed 22/10

5:25 p.m.-10:16 a.m.

1 stop16h 51m

C$ 555

Washington, D.C.Thunder Bay

IAD - YQT

IADYQT

Washington, D.C. Dulles Intl

Sun 12/10

11:35 a.m.-8:50 p.m.

2 stops9h 15m

Thunder Bay

Sat 18/10

7:40 a.m.-3:06 p.m.

1 stop7h 26m

C$ 583

Washington, D.C.Thunder Bay

IAD - YQT

IADYQT

Washington, D.C. Dulles Intl

Sun 12/10

11:35 a.m.-8:50 p.m.

2 stops9h 15m

Thunder Bay

Thu 16/10

5:25 p.m.-10:16 a.m.

1 stop16h 51m

C$ 590

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Thu 9/10

10:00 a.m.-8:50 p.m.

2 stops10h 50m

Thunder Bay

Sun 12/10

7:40 a.m.-2:20 p.m.

1 stop6h 40m

C$ 606

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Wed 8/10

12:00 p.m.-8:50 p.m.

2 stops8h 50m

Thunder Bay

Sun 12/10

2:05 p.m.-8:55 p.m.

1 stop6h 50m

C$ 606

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Fri 10/10

7:50 a.m.-8:50 p.m.

2 stops13h 00m

Thunder Bay

Sun 12/10

7:40 a.m.-2:20 p.m.

1 stop6h 40m

C$ 624

ChicagoThunder Bay

MDW - YQT

MDWYQT

Chicago Midway

Mon 5/1

11:00 a.m.-7:42 p.m.

1 stop7h 42m

Thunder Bay

Sat 10/1

8:00 a.m.-11:50 a.m.

1 stop4h 50m

C$ 652

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Fri 10/10

3:05 p.m.-9:13 p.m.

1 stop6h 08m

Thunder Bay

Sat 11/10

7:40 a.m.-12:30 p.m.

1 stop4h 50m

C$ 669

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Thu 9/10

4:15 p.m.-11:10 a.m.

3 stops18h 55m

Thunder Bay

Sat 11/10

7:40 a.m.-12:30 p.m.

1 stop4h 50m

C$ 682

NewarkThunder Bay

EWR - YQT

EWRYQT

Newark

Wed 3/12

8:55 a.m.-1:42 p.m.

1 stop4h 47m

Thunder Bay

Tue 9/12

4:15 p.m.-9:10 p.m.

1 stop4h 55m

C$ 693

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 28 results
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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

What is the cheapest month to book a flight from USA to Thunder Bay?

Currently, June is the cheapest month in which you can book a flight from USA to Thunder Bay (average of C$ 207). Flying from USA to Thunder Bay in December is currently the most expensive (average of C$ 307). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Thunder Bay

Get insights into the airlines that provide service to Thunder Bay. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thunder Bay. Reviews last updated 16 September 2025.
Read through reviews of airlines operating flights from the United States to Thunder Bay, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Overall

7.1

Crew

7.8

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Overall

7.1

Crew

7.8

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

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 United Airlines can get you from USA to Thunder Bay in just under 16h 05m. Your travel time can differ by up to 2h 45m. The distance between USA and Thunder Bay is about 1836 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, Chicago Midway - Thunder Bay or Dallas Love Field - 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.

  • What is the cheapest month to book a flight from USA to Thunder Bay?

    Currently, June is the cheapest month in which you can book a flight from USA to Thunder Bay (average of C$ 207). Flying from USA to Thunder Bay in December is currently the most expensive (average of C$ 307). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.
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Why should you use Cheapflights to find cheap flight tickets from USA to Thunder Bay?

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Can Cheapflights notify me if prices for flights from USA to Thunder Bay become cheaper?

Yes! Start tracking prices for USA to Thunder Bay flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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