IAD - YQT

$471 Find Cheap Flights from Washington Dulles Airport to Thunder Bay

This is the cheapest round-trip 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 3/15. 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
$471
Air Canada
Sun 3/15Sun 3/22
IAD - YQT • 1 stop
Cheapest one-way
Multiple Airlines
Fri 1/30
IAD - YQT • multi-stop
Top airlines
Air Canada
Cheapest • from $471 (round-trip)
Porter Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Sun, Mar 15 - Sun, Mar 22
Air Canada Logo
4:30 pm - 11:35 pm
IAD
-
YQT
7h 05m
1 stop
Air Canada Logo
5:00 am - 3:46 pm
YQT
-
IAD
10h 46m
1 stop
$471Air Canada
Sun, Jun 7 - Sun, Jun 14
Air Canada Logo
4:10 pm - 11:15 pm
IAD
-
YQT
7h 05m
1 stop
Air Canada Logo
11:45 am - 8:29 pm
YQT
-
IAD
8h 44m
1 stop
$510Air Canada
Sun, Mar 15 - Sun, Mar 22
Multiple Airlines Logo
8:15 am - 9:24 pm
IAD
-
YQT
37h 09m
2 stops
Multiple Airlines Logo
4:15 pm - 10:24 am
YQT
-
IAD
18h 09m
1 stop
$511Multiple Airlines
Sun, Mar 15 - Sun, Mar 22
Porter Airlines Logo
6:30 pm - 11:10 am
IAD
-
YQT
16h 40m
2 stops
Porter Airlines Logo
6:00 am - 5:14 pm
YQT
-
IAD
11h 14m
2 stops
$573Porter Airlines
Sun, Jun 7 - Sun, Jun 14
United Airlines Logo
4:10 pm - 11:15 pm
IAD
-
YQT
7h 05m
1 stop
United Airlines Logo
11:45 am - 11:12 pm
YQT
-
IAD
11h 27m
2 stops
$587United Airlines
Sun, Mar 15 - Sun, Mar 22
Multiple Airlines Logo
7:00 am - 10:21 am
IAD
-
YQT
27h 21m
3 stops
Multiple Airlines Logo
6:00 am - 5:14 pm
YQT
-
IAD
11h 14m
2 stops
$619Multiple Airlines
Sun, Jun 7 - Sun, Jun 14
United Airlines Logo
6:00 am - 5:15 pm
IAD
-
YQT
11h 15m
2 stops
United Airlines Logo
11:45 am - 11:12 pm
YQT
-
IAD
11h 27m
2 stops
$621United Airlines
Fri, Jun 19 - Sun, Jun 28
Porter Airlines Logo
4:05 pm - 10:00 pm
IAD
-
YQT
5h 55m
1 stop
Porter Airlines Logo
6:00 am - 10:46 am
YQT
-
IAD
4h 46m
1 stop
$653Porter Airlines
Sat, Feb 14 - Sun, Feb 15
Porter Airlines Logo
1:50 pm - 7:42 pm
IAD
-
YQT
5h 52m
1 stop
Porter Airlines Logo
10:30 am - 5:14 pm
YQT
-
IAD
6h 44m
1 stop
$671Porter Airlines
Sat, Feb 21 - Wed, Feb 25
Air Canada Logo
8:40 am - 11:05 pm
IAD
-
YQT
14h 25m
1 stop
Air Canada Logo
7:25 pm - 11:44 am
YQT
-
IAD
16h 19m
2 stops
$684Air Canada
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 Air Canada ($471) and Porter Airlines ($573).

Good to know

Cheapest flight$471
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 $471 for a round-trip ticket.

  • 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.
7.9
Porter AirlinesOverall score based on 412 reviews
6.9Entertainment
7.5Food
8.2Boarding
7.9Comfort
8.6Crew
Airline reviews

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..

6.0 GoodBeat, Jan 2026
YUL - YVR
Read more Porter Airlines reviews

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

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

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

Information on your arrival and departure airports