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Dulles Intl

$168+ Cheap flights from Quebec to Dulles Intl (IAD)

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
Jul 23 — Jul 301
Thu 7/23
Thu 7/30
1 adult, Economy
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Cheap flight deals from Quebec to Dulles Intl

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 June 23, 2026.

This Mytrip deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:30 am
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Sun 7/123:55 pm
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 6/21$291
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:40 am
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Mon 8/33:50 pm
IAD
-
YOW
1 stop4h 14m
Porter Airlines
Deal found 6/20$292
This FlightHub deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:35 am
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Wed 8/511:25 am
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 6/22$292
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:30 am
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Tue 8/1111:25 am
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 6/18$293
This Gotogate deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:40 am
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Wed 7/153:55 pm
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 6/20$294
This Air Canada deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:05 pm
YUL
-
IAD
Nonstop1h 55m
Air Canada
Sun 9/275:15 pm
IAD
-
YUL
1 stop4h 30m
Air Canada
Deal found 6/22$294
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:40 am
YOW
-
IAD
1 stop4h 30m
Porter Airlines
Mon 8/103:50 pm
IAD
-
YOW
1 stop4h 14m
Porter Airlines
Deal found 6/20$295
This Booking.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:35 am
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Sat 8/811:25 am
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 6/21$295
This FlightHub deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:40 am
YOW
-
IAD
1 stop4h 30m
Porter Airlines
Fri 9/253:50 pm
IAD
-
YOW
1 stop4h 14m
Porter Airlines
Deal found 6/19$296
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1610:40 am
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Tue 7/213:55 pm
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 6/20$297
This Trip.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/119:15 am
YOW
-
IAD
1 stop5h 56m
Porter Airlines
Thu 7/163:55 pm
IAD
-
YOW
1 stop5h 49m
Porter Airlines
Deal found 6/21$298
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1710:40 am
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Mon 7/203:55 pm
IAD
-
YOW
1 stop5h 49m
Porter Airlines
Deal found 6/19$299

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 June 23, 2026.

Round-trip from

$291
(Mytrip)

One-way from

$168
(Gotogate)

Popular in

July

Cheapest in

October

Average price

$334

Good round-trip deal

$366 or less

Good one-way deal

$212 or less
From Quebec to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Quebec to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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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 2,558,603 searches. Data last updated June 23, 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 - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/13

10:35 am-3:10 pm

1 stop4h 35m

Washington, D.C. Dulles Intl

Mon 8/17

3:50 pm-10:10 pm

1 stop6h 20m

$320

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 7/28

6:30 am-10:25 am

1 stop3h 55m

Washington, D.C. Dulles Intl

Sat 8/8

11:25 am-6:10 pm

1 stop6h 45m

$320

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 7/16

10:40 am-3:11 pm

1 stop4h 31m

Washington, D.C. Dulles Intl

Fri 7/17

3:55 pm-9:44 pm

1 stop5h 49m

$333

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 7/11

9:15 am-3:11 pm

1 stop5h 56m

Washington, D.C. Dulles Intl

Mon 8/3

3:50 pm-8:04 pm

1 stop4h 14m

$333

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 7/9

10:40 am-3:11 pm

1 stop4h 31m

Washington, D.C. Dulles Intl

Sun 8/2

3:50 pm-9:44 pm

1 stop5h 54m

$333

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 7/9

10:40 am-3:11 pm

1 stop4h 31m

Washington, D.C. Dulles Intl

Fri 8/7

3:50 pm-8:04 pm

1 stop4h 14m

$333

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 9/1

7:34 pm-9:18 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Wed 9/2

8:35 am-4:38 pm

1 stop8h 03m

$342

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 7/30

6:47 pm-12:41 am

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 8/4

12:30 pm-11:30 pm

2 stops11h 00m

$348

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 8/21

9:30 am-8:55 pm

2 stops11h 25m

Washington, D.C. Dulles Intl

Tue 8/25

6:00 am-1:39 pm

2 stops7h 39m

$348

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 7/2

12:53 pm-7:35 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Wed 7/8

10:21 am-11:25 pm

2 stops13h 04m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 58 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 $109). Flying from Quebec to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of $284). 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 June 23, 2026.

A simple way to save on the total cost of your ticket is to fly from Quebec to Washington, D.C. Dulles Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight at noon.

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 June 23, 2026.

The most flights from CAQC to IAD are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 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 June 20, 2026.

Travelers seeking maximum savings on their Quebec to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday evenings 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?

    For as low as $342, Porter Airlines can have you in Washington, D.C. Dulles Intl Airport from Quebec in 1h 44m. Quebec and Washington, D.C. Dulles Intl Airport are separated by a distance of 449 mi. 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?

    The cheapest airlines for a one-way flight from Quebec to Washington, D.C. Dulles Intl Airport are Porter Airlines ($134), United Airlines ($148), and Air Canada ($160).

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

    While some choose either Ottawa - Washington, D.C. Dulles Intl or Québec City - Washington, D.C. Dulles Intl, Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl is the most popular route from Quebec to Washington, D.C. Dulles Intl Airport.

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

    No one likes to see their flight delayed. When booking a flight from Quebec to Washington, D.C. Dulles Intl Airport consider choosing Sun Country Air (100%), Avianca (93%) or Copa Airlines (92%) as they are the most reliable in getting you off to your destination on time.

  • 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 $176. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for $269 on average, our data indicates $376 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 $109). Flying from Quebec to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of $284). 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

Traveling 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
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Laurel
Fredericksburg
Hanover
Chantilly
Manassas
Waldorf
Silver Spring
Largo
Clinton

Browse thousands of different options on Cheapflights for your next trip

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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 2,558,603 searches. Data last updated June 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$197Average$292FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$258Average$436FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$269Average$337FlexibilityNo cancel feeOn-time67%

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