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Cheap flights from Quebec to Washington, D.C. Dulles Intl Airport from C$ 237

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
19 Jul — 26 Jul1
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 19 June 2026.

Fri 24/710:35 a.m.
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Tue 28/73:55 p.m.
IAD
-
YUL
1 stop6h 15m
Porter Airlines
Deal found 16/6C$ 411
Fri 31/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Tue 4/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 16/6C$ 414
Sat 1/810:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Mon 10/83:50 p.m.
IAD
-
YUL
1 stop6h 20m
Porter Airlines
Deal found 19/6C$ 415
Fri 28/810:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Sun 30/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Deal found 16/6C$ 417
Fri 17/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Mon 20/73:55 p.m.
IAD
-
YOW
1 stop5h 49m
Porter Airlines
Deal found 19/6C$ 422
Thu 2/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Wed 8/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 18/6C$ 422
Sat 11/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Fri 17/73:55 p.m.
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 18/6C$ 424
Tue 18/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Mon 24/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Deal found 19/6C$ 424
Thu 2/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Thu 9/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 16/6C$ 425
Fri 28/810:40 a.m.
YOW
-
IAD
1 stop4h 30m
Porter Airlines
Mon 31/811:25 a.m.
IAD
-
YOW
1 stop6h 29m
Porter Airlines
Deal found 19/6C$ 426
Sat 1/89:15 a.m.
YUL
-
IAD
Nonstop1h 57m
United Airlines
Mon 24/85:40 p.m.
IAD
-
YUL
Nonstop2h 05m
United Airlines
Deal found 15/6C$ 426
Thu 16/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Thu 23/73:55 p.m.
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 18/6C$ 428

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 19 June 2026.

Round-trip from

C$ 411

One-way from

C$ 237

Popular in

April

Cheapest in

October

Average price

C$ 472

Good round-trip deal

C$ 333 or less

Good one-way deal

C$ 382 or less
Porter Airlines
  • Porter Airlines
  • 24/7-28/7
  • 2 total stops
  • 10h 51m total
  • Quebec to Washington, D.C.
Search Deals
Porter Airlines
  • Porter Airlines
  • 5/10
  • 1 total stop
  • 4h 30m total
  • Quebec to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 19 June 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

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 11/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

Washington, D.C. Dulles Intl

Fri 17/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

C$ 424

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

9:15 a.m.-11:12 a.m.

Nonstop1h 57m

Washington, D.C. Dulles Intl

Sun 26/7

5:34 p.m.-7:45 p.m.

Nonstop2h 11m

C$ 426

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

7:00 a.m.-4:36 p.m.

1 stop9h 36m

Washington, D.C. Dulles Intl

Tue 20/10

6:00 a.m.-6:50 p.m.

2 stops12h 50m

C$ 449

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 1/8

9:15 a.m.-11:12 a.m.

Nonstop1h 57m

Washington, D.C. Dulles Intl

Mon 24/8

3:45 p.m.-5:27 p.m.

Nonstop1h 42m

C$ 456

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 8/7

9:15 a.m.-11:12 a.m.

Nonstop1h 57m

Washington, D.C. Dulles Intl

Tue 21/7

5:34 p.m.-7:45 p.m.

Nonstop2h 11m

C$ 456

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

6:47 p.m.-12:41 a.m.

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 4/8

12:30 p.m.-11:30 p.m.

2 stops11h 00m

C$ 465

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

12:44 p.m.-8:55 p.m.

1 stop8h 11m

Washington, D.C. Dulles Intl

Fri 28/8

3:03 p.m.-11:52 p.m.

1 stop8h 49m

C$ 491

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 29/7

9:30 a.m.-11:13 p.m.

2 stops13h 43m

Washington, D.C. Dulles Intl

Mon 10/8

5:47 p.m.-11:52 p.m.

1 stop6h 05m

C$ 491

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

11:23 a.m.-10:59 p.m.

1 stop11h 36m

Washington, D.C. Dulles Intl

Mon 17/8

5:40 p.m.-7:45 p.m.

Nonstop2h 05m

C$ 494

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

10:35 a.m.-3:10 p.m.

1 stop4h 35m

Washington, D.C. Dulles Intl

Fri 28/8

11:25 a.m.-6:10 p.m.

1 stop6h 45m

C$ 503

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 56 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, March is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of C$ 154). Flying from Quebec to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of C$ 401). 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 19 June 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 36% 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 19 June 2026.

The most flights from CAQC to IAD are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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

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 13 June 2026.

Travelers seeking maximum savings on their Quebec to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday 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 57m. Porter Airlines provides one of the quickest options available for as low as C$ 426. 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$ 196. Users have also found prices from C$ 226 and C$ 243 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 Sun Country Air (100%), Avianca (93%) and Copa Airlines (92%).

  • 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$ 280. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 384 on average, our data indicates C$ 736 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, March is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of C$ 154). Flying from Quebec to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of C$ 401). 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
Hanover
Fairfax
Oxon Hill
Gaithersburg
Reston
Chantilly
Herndon
Ellicott City
Arlington
Fredericksburg
Alexandria
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
Vancouver Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Vancouver Intl to Baltimore flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Vancouver Intl to Reagan-National flights
Toronto Island to Reagan-National flights
Calgary to Dulles Intl flights
Ottawa to Reagan-National flights
Pierre Elliott Trudeau Intl to Baltimore flights
Ottawa to Dulles Intl flights
Winnipeg to Dulles Intl flights
Calgary to Baltimore flights
Toronto Island to Baltimore flights
Ottawa to Baltimore flights
Edmonton to Baltimore flights
Edmonton to Reagan-National flights
Calgary to Reagan-National flights
Edmonton to Dulles Intl flights
Winnipeg to Baltimore flights
Winnipeg to Reagan-National flights
Victoria to Dulles Intl flights
Halifax to Dulles Intl flights
Regina to Dulles Intl flights
Québec City to Dulles Intl flights
Halifax to Reagan-National flights
Halifax to Baltimore flights
Saskatoon to Reagan-National flights
Québec City to Reagan-National flights
Regina to Reagan-National flights
Victoria to Baltimore flights
Hamilton to Reagan-National flights
Regina to Baltimore flights
Saskatoon to Baltimore flights
Québec City to Baltimore flights
London to Reagan-National flights
Fredericton to Dulles Intl flights
London to Baltimore flights
Fort McMurray to Reagan-National flights
Victoria to Reagan-National flights
Kamloops to Dulles Intl flights
Thunder Bay to Dulles Intl flights
Kelowna to Dulles Intl flights
St. John's 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 19 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 306AverageC$ 382FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 376AverageC$ 583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 412AverageC$ 560FlexibilityNo 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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