CA $342 Cheap Flights from Washington (IAD) to Thunder Bay (YQT)

View CA $342 flight on Wed, Oct. 8, 2025Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Thunder Bay, ON (YQT-Thunder Bay Intl.)

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Cheap flights from Washington (IAD) to Thunder Bay (YQT)

Prices were available within the past 7 days and start at CA $342 for one-way flights and CA $711 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Mon, Oct. 6 - Sat, Oct. 11
IAD
Washington
YQT
Thunder Bay
CA $711 Roundtrip, found 1 day ago
CA $711
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Oct. 6 from Washington to Thunder Bay, returning Sat, Oct. 11, priced at CA $711 found 1 day ago
Porter Airlines
Mon, Oct. 6 - Sat, Oct. 11
IAD
Washington
YQT
Thunder Bay
CA $760 Roundtrip, found 1 day ago
CA $760
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Oct. 6 from Washington to Thunder Bay, returning Sat, Oct. 11, priced at CA $760 found 1 day ago
Flight from Washington to Thunder Bay (IAD - YQT) route information
Origin airport
Washington Dulles Intl.
Destination airport
Thunder Bay Intl.
Airlines serving
Porter Airlines
Roundtrip price
CA $710
Distance
1405 km

Chantilly to Thunder Bay Flights

The easy way to book your flights from Washington to Thunder Bay 

With Expedia, it’s simple to find and book flights to Thunder Bay from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Thunder Bay Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Thunder Bay today, tomorrow, or this week.  

 

Save dollars with cheap flights from Washington Dulles Intl., IAD to Thunder Bay Intl., YQT 

Sort your search results by price to find great deals on your flight from Washington to Thunder Bay—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Thunder Bay from Washington currently is just CA $711 rising to CA $760.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Thunder Bay  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Thunder Bay from Washington 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Thunder Bay with Expedia today.

Frequently asked questions

How much is a flight from IAD to Thunder Bay Intl. Airport?
The lowest price advertised for a round-trip journey between Washington Dulles Intl. Airport (IAD) and YQT is CA $711. But you better act fast. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Thunder Bay Intl. Airport?
Most flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to YQT that have flexible change policies?
Flights from Washington Dulles Intl. Airport (IAD) to Thunder Bay Intl. Airport with flexible change policies are available from several airlines. Simply use our "No change fees" filter while searching. You'll only need to pay the cost difference between flights, with no added fees to worry about.
How many hours is the flight from Washington Dulles Intl. Airport (IAD) to YQT?
It takes approximately 3 hours and 32 minutes to fly from Dulles Intl. Airport to Thunder Bay Intl. Airport. But with a solid playlist and an interesting book, the hours will go by quicker.
How far is the flight from Dulles Intl. Airport to Thunder Bay Intl. Airport?
With a flight distance of 1,400 kilometres, it's just a hop from Washington Dulles Intl. Airport (IAD) to Thunder Bay Intl. Airport. It might be a quick journey, but it's still worth packing a good book to read.
Which airlines fly direct from IAD to YQT?
Direct flights aren't available, so you'll need to make at least one stop between Dulles Intl. Airport and YQT. Make the most of the layover time to stretch your legs and freshen up.
Are IAD to Thunder Bay Intl. Airport (YQT) flight tickets cheaper when they're purchased at the last minute?
Tickets from Dulles Intl. Airport to Thunder Bay Intl. Airport (YQT) are available up to a year before departure on Expedia. And although you may occasionally nab great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more options — and you can avoid landing the dreaded middle seat! We're constantly updating our fares to bring you the best bargains, so keep checking in for all the latest specials.

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