IAD - YQT

$275 Find Cheap Flights from Washington Dulles Airport to Thunder Bay

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Thunder Bay departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Thunder Bay

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Thunder Bay, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Thunder Bay, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$466
Porter Airlines
Tue 5/26Sun 5/31
IAD - YQT • 1 stop
Cheapest one-way
$275
Porter Airlines
Mon 4/13
IAD - YQT • 2 stops
Top airlines
Cheapest • from $466 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Thunder Bay. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $448 (round-trip)
Shortest trip • 5h 03m (one-way)
Insights
Insights
Insights
Insights
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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
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Thunder Bay (IAD-YQT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Thunder Bay that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Thunder Bay

Tue, May 26 - Sun, May 31
Porter Airlines Logo
11:30 am - 5:00 pm
IAD
-
YQT
5h 30m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$466Porter Airlines
Wed, Apr 29 - Sun, May 3
Porter Airlines Logo
11:40 am - 7:42 pm
IAD
-
YQT
8h 02m
1 stop
Porter Airlines Logo
8:15 am - 3:21 pm
YQT
-
IAD
7h 06m
1 stop
$506Porter Airlines
Mon, May 25 - Sun, May 31
Porter Airlines Logo
4:05 pm - 9:45 pm
IAD
-
YQT
5h 40m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$511Porter Airlines
Tue, Apr 28 - Tue, May 5
Porter Airlines Logo
11:40 am - 9:22 pm
IAD
-
YQT
9h 42m
2 stops
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$521Porter Airlines
Fri, Jun 5 - Sun, Jul 26
Porter Airlines Logo
4:05 pm - 9:45 pm
IAD
-
YQT
5h 40m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$525Porter Airlines
Tue, Apr 28 - Tue, May 5
Porter Airlines Logo
11:40 am - 9:47 am
IAD
-
YQT
22h 07m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$528Porter Airlines
Sun, Apr 26 - Sun, May 3
Porter Airlines Logo
6:00 pm - 9:47 am
IAD
-
YQT
15h 47m
1 stop
Porter Airlines Logo
6:00 am - 3:21 pm
YQT
-
IAD
9h 21m
1 stop
$538Porter Airlines
Fri, Jun 5 - Sun, Jul 26
Porter Airlines Logo
4:05 pm - 9:45 pm
IAD
-
YQT
5h 40m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$542Porter Airlines
Tue, May 26 - Sun, May 31
Porter Airlines Logo
11:30 am - 5:00 pm
IAD
-
YQT
5h 30m
1 stop
Porter Airlines Logo
11:35 am - 10:46 am
YQT
-
IAD
23h 11m
2 stops
$596Porter Airlines
Fri, Jun 5 - Sun, Jul 26
Multiple Airlines Logo
4:05 pm - 8:55 am
IAD
-
YQT
16h 50m
1 stop
Multiple Airlines Logo
11:35 am - 10:46 am
YQT
-
IAD
23h 11m
2 stops
$609Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Thunder Bay flights

Get data-powered insights and trends into flights from Dulles Intl to Thunder Bay to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Thunder Bay?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Thunder Bay were found on Porter Airlines ($466) and Air Canada ($650).

Good to know

Cheapest flight$275
Flight from Washington Dulles Airport to Thunder Bay

When to book flights from Dulles Intl to Thunder Bay

Are your dates flexible? Find out the best times to travel from Dulles Intl 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.

FAQs for booking Washington Dulles Airport to Thunder Bay flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Thunder Bay?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Thunder Bay was $275 for a one-way ticket and $466 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Thunder Bay?

    A passport is required to fly from Washington Dulles Airport to Thunder Bay.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Thunder Bay?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Thunder Bay?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Thunder Bay.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Thunder Bay?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thunder Bay from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Thunder Bay?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Thunder Bay with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and YQT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Thunder Bay?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Thunder Bay from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Thunder Bay

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Thunder Bay. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Thunder Bay? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 424 reviews
8.2Boarding
8.0Comfort
8.6Crew
7.0Entertainment
7.6Food
Airline reviews

Even tho the flight was a bit delayed the team was apologetic. Everyone was friendly and efficient.

10.0 ExcellentDeanna, Mar 2026
YWG - YOW
Read more Porter Airlines reviews

Even tho the flight was a bit delayed the team was apologetic. Everyone was friendly and efficient.

The flight was a little delayed but check in was easy and boarding was quick. Luggage was quickly available and everything worked great.

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

Much roomer than air Canada! Great flight for the price. No complaints

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

As a first time flyer with Porter I was happy with the service and comfort of the airline.

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

Everything you need to know for your flight from Dulles Intl to Thunder Bay

Information on your arrival and departure airports