$219 Cheap Flights from Thunder Bay (YQT) to Washington (IAD)

View $219 flight on Mon, Oct 20, 2025Opens in a new window

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

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Cheap Flights from Thunder Bay to Washington (YQT-IAD)

Prices were available within the past 7 days and start at $219 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $219 or cheap return flight from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD)?
is the most affordable month to fly from YQT to IAD. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest YQT to IAD flight.
How many flights per day from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YQT to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) without delays, pick a flight that leaves Thunder Bay Intl. Airport (YQT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from YQT to IAD are usually more expensive. For the best prices, start looking for flights early. That being said, if your travel plans are flexible, it's possible to score a cheap ticket just before your departure.
Is it cheaper to book a YQT to IAD flight and hotel package?
You'll typically save money by securing a YQT to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Thunder Bay Intl. Airport (YQT) to Washington Dulles Intl. Airport (IAD)?
Typically, you can cancel or reschedule your YQT to IAD flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Thunder Bay Intl.
Destination airport
Washington Dulles Intl.
Distance
878 mi

Book with confidence

Book with confidence

Thunder Bay to Washington Flights

The cheapest times to fly from Thunder Bay to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Thunder Bay to Washington are during the month of . You can find some of the cheapest flights from Thunder Bay to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Thunder Bay to Washington

Sunday is one of the best days to book for cheap flights from Thunder Bay to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Thunder Bay to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Thunder Bay to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $219 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Thunder Bay to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Thunder Bay to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Thunder Bay to Washington Flights

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*Available to One Key members.