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CA $443 Cheap Flights from Thunder Bay (YQT) to Washington (IAD)

View CA $443 flight on Thu, Oct 1, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $443 for one-way flights and CA $771 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $771 Roundtrip, just found
CA $771
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $771 just found
Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $792 Roundtrip, just found
CA $792
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $792 just found
Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $821 Roundtrip, just found
CA $821
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $821 just found
Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $842 Roundtrip, just found
CA $842
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $842 just found
Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $853 Roundtrip, just found
CA $853
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $853 just found
Porter Airlines
Thu, Oct 22 - Mon, Oct 26
YQT
Thunder Bay
IAD
Washington
CA $873 Roundtrip, found 4 days ago
CA $873
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Thu, Oct 22 from Thunder Bay to Washington, returning Mon, Oct 26, priced at CA $873 found 4 days ago
Porter Airlines
Thu, Oct 1 - Fri, Nov 20
YQT
Thunder Bay
IAD
Washington
CA $878 Roundtrip, found 4 days ago
CA $878
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Thu, Oct 1 from Thunder Bay to Washington, returning Fri, Nov 20, priced at CA $878 found 4 days ago
Porter Airlines
Sat, Sep 5 - Mon, Sep 7
YQT
Thunder Bay
IAD
Washington
CA $883 Roundtrip, just found
CA $883
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Sep 5 from Thunder Bay to Washington, returning Mon, Sep 7, priced at CA $883 just found
Air Canada
Thu, Oct 1 - Fri, Nov 20
YQT
Thunder Bay
IAD
Washington
CA $895 Roundtrip, found 4 days ago
CA $895
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Oct 1 from Thunder Bay to Washington, returning Fri, Nov 20, priced at CA $895 found 4 days ago
United
Tue, Nov 24 - Mon, Nov 30
YQT
Thunder Bay
IAD
Washington
CA $1,020 Roundtrip, found 3 hours ago
CA $1,020
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Nov 24 from Thunder Bay to Washington, returning Mon, Nov 30, priced at CA $1,020 found 3 hours ago

Frequently asked questions

How much does a flight from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from CA $443 and cheap return flights from CA $771 YQT to IAD with Expedia. One-way flights typically cost between CA$349 and CA$1044, and return flights often range between CA$755 and CA$1880. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when YQT to IAD ticket fares go up or down.
What is the cheapest month to fly from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest months to fly from YQT to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter YQT to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Passaredo Transportes Aereos is one of the cheapest airlines offering connecting return flights from Thunder Bay Intl. (YQT) to Washington Dulles Intl. (IAD), with tickets starting from around CA$719 for flights that can be booked for departure within the next year. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are approximately 7 connecting flights per day from Thunder Bay Intl. (YQT) to Washington Dulles Intl. (IAD). Some common connection points include Pearson Intl. (YYZ), Winnipeg James Armstrong Richardson Intl. (YWG), and Sioux Lookout Airport (YXL).
What is the earliest flight from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Thunder Bay Intl. (YQT) to Washington Dulles Intl. (IAD) typically departs around 5:00 AM. This service is operated by Air Canada. This is a seasonal service active in March. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) on a Thursday, with around 9 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Air Canada, Porter Airlines, and Passaredo Transportes Aereos. Flight schedules are quite consistent throughout the week, so you'll have similar options on other days too.
What are the most popular departure times for flights from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Thunder Bay Intl. (YQT) to Washington Dulles Intl. (IAD) are in the morning, from 9am to 12pm. Many major carriers, including Air Canada, WestJet and Bearskin Airlines, offer flights during this window. Many travelers prefer this because it allows for an early start to your journey, getting you to your destination with plenty of time left in the day.
How long does it take to fly from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are no nonstop flights from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.). The shortest flights typically involve one stop, taking around 9 hours 18 minutes. Flights with two or more stops usually take longer, averaging about 11 hours 18 minutes. The distance between these two airports is approximately 1,413 kilometres. Keep in mind that actual travel times can vary based on layover durations, routing, and weather conditions.
Can you fly business or first class from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You can fly business class between YQT and IAD. You can fly business class with Air Canada.
How do I earn miles on a Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington, DC (IAD) from Thunder Bay, ON (YQT)?
If you're planning to travel to Washington from Thunder Bay Intl. (YQT), you can fly directly into Washington Dulles Intl. (IAD) which offers international flights and connections. Some flights may connect through major hubs like Pearson Intl. (YYZ), Winnipeg James Armstrong Richardson Intl. (YWG), or Sault Ste. Marie Airport (YAM) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Thunder Bay, ON (YQT-Thunder Bay Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Thunder Bay Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, United
Roundtrip price
CA $771
Distance
1405 km

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Thunder Bay to Chantilly Flights

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

With Expedia, it’s simple to find and book flights to Washington from Thunder Bay 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 Washington Dulles 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 Thunder Bay to Washington today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Thunder Bay to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Thunder Bay currently is just CA $771 rising to CA $1,020.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • 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 Washington from Thunder Bay 

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 Washington with Expedia today.

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