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Cheap flights from Quebec to Washington, D.C. Dulles Intl Airport from C$ 236

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
8 Sep — 15 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Quebec to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Quebec to Dulles Intl
Explore the most affordable flight options available from Quebec to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 August 2026.

Fri 21/86:30 a.m. -
1 stop4h 15m
Mon 24/811:25 a.m. -
1 stop6h 45m
Deal found 6/8C$ 425
Wed 2/96:30 a.m. -
1 stop4h 15m
Wed 9/911:25 a.m. -
1 stop6h 47m
Deal found 5/8C$ 426
Sat 5/910:20 a.m. -
1 stop5h 25m
Sat 26/911:25 a.m. -
1 stop6h 47m
Deal found 8/8C$ 428
Fri 28/810:30 a.m. -
1 stop6h 11m
Mon 31/85:20 p.m. -
1 stop4h 27m
Deal found 8/8C$ 429
Sat 31/106:25 p.m. -
Nonstop1h 58m
Sun 1/115:15 p.m. -
1 stop4h 30m
Deal found 9/8C$ 435
Sat 12/96:30 a.m. -
1 stop4h 15m
Sun 13/93:50 p.m. -
1 stop5h 22m
Deal found 6/8C$ 439
Fri 28/86:30 a.m. -
1 stop4h 15m
Mon 31/83:50 p.m. -
1 stop6h 20m
Deal found 5/8C$ 440
Sat 22/89:15 a.m. -
Nonstop1h 58m
Sun 23/89:45 a.m. -
Nonstop1h 42m
Deal found 8/8C$ 443
Thu 15/109:00 a.m. -
1 stop6h 10m
Thu 29/1011:20 a.m. -
1 stop4h 40m
Deal found 4/8C$ 445
Sat 5/912:25 p.m. -
1 stop4h 43m
Sat 12/93:45 p.m. -
1 stop4h 59m
Deal found 7/8C$ 449
Wed 28/1010:30 a.m. -
1 stop6h 03m
Tue 3/119:55 a.m. -
1 stop5h 30m
Deal found 4/8C$ 453
Thu 3/91:05 p.m. -
Nonstop1h 50m
Mon 7/99:45 a.m. -
Nonstop1h 42m
Deal found 7/8C$ 454

Find flight deals from Quebec to Dulles Intl

Keep the following information in mind while searching for Quebec to Dulles Intl flight deals. Data was last updated 9 August 2026.

Round-trip from

C$ 425

One-way from

C$ 236

Popular in

August

Cheapest in

October

Average price

C$ 624

Good round-trip deal

C$ 574 or less

Good one-way deal

C$ 327 or less
Porter Airlines
  • Porter Airlines
  • 21/8-24/8
  • 2 total stops
  • 11h 00m total
  • Quebec to Washington, D.C.
Search Deals
Porter Airlines
  • Porter Airlines
  • 1/9
  • 1 total stop
  • 4h 30m total
  • Quebec to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Quebec to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Quebec to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quebec to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 9 August 2026.
Use the filters below to find and compare flights from Quebec to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

9:15 a.m.-11:13 a.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Tue 13/10

5:50 p.m.-10:06 p.m.

1 stop4h 16m

C$ 429

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

1:05 p.m.-3:00 p.m.

Nonstop1h 55m

Washington, D.C. Dulles Intl

Sun 18/10

5:15 p.m.-9:45 p.m.

1 stop4h 30m

C$ 429

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Sat 5/9

12:25 p.m.-5:08 p.m.

1 stop4h 43m

Washington, D.C. Dulles Intl

Sat 12/9

3:45 p.m.-8:44 p.m.

1 stop4h 59m

C$ 449

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Sat 10/10

11:25 a.m.-6:12 p.m.

1 stop6h 47m

C$ 458

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

9:00 a.m.-3:10 p.m.

1 stop6h 10m

Washington, D.C. Dulles Intl

Thu 8/10

3:50 p.m.-9:12 p.m.

1 stop5h 22m

C$ 461

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

9:00 a.m.-3:10 p.m.

1 stop6h 10m

Washington, D.C. Dulles Intl

Mon 5/10

3:50 p.m.-9:12 p.m.

1 stop5h 22m

C$ 461

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 29/9

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Thu 8/10

3:50 p.m.-9:12 p.m.

1 stop5h 22m

C$ 461

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Mon 19/10

11:25 a.m.-6:12 p.m.

1 stop6h 47m

C$ 461

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 29/9

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Tue 6/10

11:25 a.m.-6:12 p.m.

1 stop6h 47m

C$ 461

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Sun 18/10

3:50 p.m.-9:12 p.m.

1 stop5h 22m

C$ 461

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from Quebec to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Quebec with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Quebec to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Quebec to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of C$ 376). Flying from Quebec to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 623). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from QC to IAD?

Find hourly flight availability from Quebec to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 August 2026.

One of the essential ways to save on airfare from Quebec to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 39% on airfare.

Weekly flight availability from Quebec to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Quebec to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 9 August 2026.

The most flights from CAQC to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Quebec to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.
Quebec to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 361 and C$ 641 in August.
The cheapest round-trip price found within the last 5 days was C$ 425 on Porter Airlines (21 Aug-24 Aug).

What is the cheapest day to fly from Quebec to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Quebec to Dulles Intl. Price data was last updated on 1 August 2026.

Travelers seeking maximum savings on their Quebec to Washington, D.C. Dulles Intl Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Quebec to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Quebec to Washington, D.C. Dulles Intl Airport?

    A quick flight from Quebec to Washington, D.C. Dulles Intl Airport can take about 1h 55m. United Airlines provides one of the quickest options available for as low as C$ 429. Quebec and Washington, D.C. Dulles Intl Airport are separated by a distance of 785 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Quebec to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as C$ 189. Users have also found prices from C$ 223 and C$ 240 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from Quebec to Washington, D.C. Dulles Intl Airport?

    The most popular route from Quebec to Washington, D.C. Dulles Intl Airport is Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl. You may also consider Ottawa - Washington, D.C. Dulles Intl or Québec City - Washington, D.C. Dulles Intl.

  • What are the most reliable airlines from Quebec to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Quebec to Washington, D.C. Dulles Intl Airport are Avianca (93%), Copa Airlines (79%) and Republic Airways (79%).

  • What are the cheapest flights from Quebec to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for C$ 250. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 387 on average, our data indicates C$ 746 when flying from Quebec to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Quebec to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Quebec to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Quebec to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Quebec to Dulles Intl.

  • Can I find deals for business class flights from Quebec to Dulles Intl?

    Yes. Cheapflights offers flight deals from Quebec to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Quebec to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of C$ 376). Flying from Quebec to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 623). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Warrenton
Winchester
Alexandria
Hanover
Oxon Hill
Gaithersburg
Reston
Chantilly
Herndon
Ellicott City
Arlington
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Quebec to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Reagan-National flights
Pearson Intl to Dulles Intl flights
Toronto Island to Dulles Intl flights
Pearson Intl to Baltimore flights
Toronto Island to Reagan-National flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Vancouver Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Ottawa to Dulles Intl flights
Vancouver Intl to Reagan-National flights
Calgary to Dulles Intl flights
Ottawa to Reagan-National flights
Toronto Island to Baltimore flights
Vancouver Intl to Baltimore flights
Pierre Elliott Trudeau Intl to Baltimore flights
Ottawa to Baltimore flights
Calgary to Reagan-National flights
Calgary to Baltimore flights
Winnipeg to Reagan-National flights
Winnipeg to Dulles Intl flights
Winnipeg to Baltimore flights
Edmonton to Dulles Intl flights
Edmonton to Reagan-National flights
Edmonton to Baltimore flights
Québec City to Dulles Intl flights
Halifax to Dulles Intl flights
Halifax to Reagan-National flights
Regina to Reagan-National flights
Hamilton to Reagan-National flights
Québec City to Baltimore flights
Halifax to Baltimore flights
London to Dulles Intl flights
Québec City to Reagan-National flights
Victoria to Dulles Intl flights
Saskatoon to Baltimore flights
London to Reagan-National flights
Kelowna to Dulles Intl flights
Kamloops to Dulles Intl flights
St. John's to Dulles Intl flights
Regina to Baltimore flights
St. John's to Reagan-National flights
Fredericton to Dulles Intl flights
Saskatoon to Reagan-National flights
Kamloops to Baltimore flights
Kelowna to Baltimore flights
Fort McMurray to Reagan-National flights
Victoria to Reagan-National flights
Regina to Dulles Intl flights

Top 3 airlines flying from Quebec to Dulles Intl

Discover the top 3 airlines that operate flights from Quebec to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 9 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 302AverageC$ 397FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 370AverageC$ 505FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 407AverageC$ 585FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Quebec to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Quebec today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Quebec to Dulles Intl?

Cheapflights simply makes it quick and affordable to book flights from Quebec to Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Quebec to Dulles Intl with no change fees?

Certainly. Search results for flights to Dulles Intl from Quebec shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Quebec to Dulles Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Quebec today and book when prices fit your budget.

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