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Dulles Intl

$167+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
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 May 5, 2026.

This Trip.com deal was found by Cheapflights users on 5/3. 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.
Wed 6/175:00 pm
YUL
-
IAD
Nonstop1h 58m
Air Canada
Wed 6/243:45 pm
IAD
-
YUL
Nonstop1h 42m
Air Canada
Deal found 5/3$262
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Thu 7/26:30 am
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Mon 7/64:00 pm
IAD
-
YUL
1 stop6h 10m
Porter Airlines
Deal found 5/2$263
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/196:30 am
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Mon 6/2211:30 am
IAD
-
YUL
1 stop6h 40m
Porter Airlines
Deal found 5/1$265
This Trip.com deal was found by Cheapflights users on 5/1. 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 5/3011:10 am
YUL
-
IAD
1 stop4h 19m
Air Canada
Sun 6/75:15 pm
IAD
-
YUL
1 stop4h 30m
Air Canada
Deal found 5/1$267
This Air Canada deal was found by Cheapflights users on 5/3. 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.
Fri 6/121:05 pm
YUL
-
IAD
Nonstop1h 58m
Air Canada
Sun 6/143:45 pm
IAD
-
YUL
Nonstop1h 53m
Air Canada
Deal found 5/3$268
This Trip.com deal was found by Cheapflights users on 5/2. 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 5/304:10 pm
YUL
-
IAD
1 stop4h 19m
Air Canada
Sat 6/63:45 pm
IAD
-
YUL
Nonstop1h 53m
Air Canada
Deal found 5/2$269
This FlightHub deal was found by Cheapflights users on 5/4. 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.
Fri 6/126:30 am
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Sun 6/1411:30 am
IAD
-
YUL
1 stop5h 45m
Porter Airlines
Deal found 5/4$270
This Air Canada deal was found by Cheapflights users on 5/2. 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.
Fri 5/225:00 pm
YUL
-
IAD
Nonstop1h 58m
Air Canada
Mon 5/259:45 am
IAD
-
YUL
Nonstop1h 48m
Air Canada
Deal found 5/2$271
This Air Canada deal was found by Cheapflights users on 5/3. 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.
Fri 6/1910:30 am
YUL
-
IAD
1 stop5h 42m
Air Canada
Wed 6/243:45 pm
IAD
-
YUL
Nonstop1h 42m
Air Canada
Deal found 5/3$272
This FlightHub deal was found by Cheapflights users on 5/3. 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 6/106:30 am
YUL
-
IAD
1 stop8h 51m
Porter Airlines
Sun 6/1411:30 am
IAD
-
YUL
1 stop5h 45m
Porter Airlines
Deal found 5/3$274
This FlightHub deal was found by Cheapflights users on 5/1. 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.
Fri 6/1211:00 am
YOW
-
IAD
1 stop4h 21m
Porter Airlines
Mon 6/1511:30 am
IAD
-
YOW
1 stop3h 24m
Porter Airlines
Deal found 5/1$320
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Sat 5/307:00 am
YOW
-
IAD
1 stop12h 50m
Multiple Airlines
Sat 6/611:30 am
IAD
-
YOW
1 stop7h 24m
Multiple Airlines
Deal found 4/30$328

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 May 5, 2026.

Round-trip from

$262
(Trip.com)

One-way from

$167
(Trip.com)

Popular in

April

Cheapest in

October

Average price

$302

Good round-trip deal

$283 or less

Good one-way deal

$266 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).
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in May 2026
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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.
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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 May 5, 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 5/28

12:49 pm-11:39 pm

2 stops10h 50m

Washington, D.C. Dulles Intl

Thu 6/4

8:05 am-5:43 pm

1 stop9h 38m

$296

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

9:30 am-6:43 pm

2 stops9h 13m

Washington, D.C. Dulles Intl

Mon 6/8

5:51 pm-11:55 pm

1 stop6h 04m

$297

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 6/9

5:07 pm-11:14 pm

1 stop6h 07m

Washington, D.C. Dulles Intl

Thu 6/11

10:16 am-5:45 pm

1 stop7h 29m

$298

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 5/30

6:00 am-10:22 am

1 stop4h 22m

Washington, D.C. Dulles Intl

Tue 6/23

11:05 am-6:54 pm

2 stops7h 49m

$329

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 5/30

6:00 am-10:22 am

1 stop4h 22m

Washington, D.C. Dulles Intl

Sat 6/6

6:08 am-11:35 am

1 stop5h 27m

$329

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 7/1

6:30 am-10:46 am

1 stop4h 16m

Washington, D.C. Dulles Intl

Wed 7/15

4:00 pm-8:10 pm

1 stop4h 10m

$341

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 5/26

12:40 pm-9:24 pm

1 stop8h 44m

Washington, D.C. Dulles Intl

Wed 6/10

5:29 pm-11:28 pm

1 stop5h 59m

$341

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 6/12

5:00 pm-6:58 pm

Nonstop1h 58m

Washington, D.C. Dulles Intl

Sun 6/14

3:45 pm-5:38 pm

Nonstop1h 53m

$346

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 9/17

6:00 am-6:33 pm

2 stops12h 33m

Washington, D.C. Dulles Intl

Sun 9/20

7:00 am-5:05 pm

1 stop10h 05m

$350

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 7/15

6:05 am-11:28 am

1 stop5h 23m

Washington, D.C. Dulles Intl

Wed 7/15

10:10 pm-11:54 pm

Nonstop1h 44m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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, September is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of $98). Flying from Quebec to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $264). 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 May 5, 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 25% on your trip compared to booking a flight in the afternoon.

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 May 2, 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.

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 May 5, 2026.

The most flights from CAQC to IAD are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, 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?

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 $383, Delta can have you in Washington, D.C. Dulles Intl Airport from Quebec in 4h 21m. 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 ($161).

  • 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 Copa Airlines (86%), Avianca (85%) or Republic Airways (84%) 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 $165. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for $249 on average, our data indicates $422 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, September is the cheapest month in which you can book a flight from Quebec to Washington, D.C. Dulles Intl Airport (average of $98). Flying from Quebec to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $264). 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
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Woodbridge
Hanover
Laurel
Largo
Upper Marlboro
Waldorf
Clinton
Hunt Valley
Cordova

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 May 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$197Average$293FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$220Average$346FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$247Average$481FlexibilityNo cancel feeOn-time69%

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