HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$166+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pierre Elliott Trudeau Intl to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl are usually found in May or March, booked 87 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Cheap flight deals from Pierre Elliott Trudeau Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Trip.com)

One-way from

$166
(Air Canada)

Popular in

December

Cheapest in

May

Average price

$372

Good round-trip deal

$386 or less

Good one-way deal

$256 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Washington, D.C. Dulles Intl flights.
Search Deals
From Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.
Search Deals

Find flight deals from Pierre Elliott Trudeau Intl to Dulles Intl

Cheapest flights from Pierre Elliott Trudeau Intl to Dulles Intl
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Trip.com deal was found by Cheapflights users on 10/23. 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 11/201:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Thu 11/2711:40 amIAD - YUL
1 stop4h 50mPorter Airlines
Deal found 10/23$240
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/136:45 amYUL - IAD
1 stop3h 39mPorter Airlines
Wed 12/36:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/23$241
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/136:45 amYUL - IAD
1 stop3h 39mPorter Airlines
Tue 12/26:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/23$248
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Mon 11/171:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Fri 11/2811:40 amIAD - YUL
1 stop3h 40mPorter Airlines
Deal found 10/23$249
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 11/236:45 amYUL - IAD
1 stop3h 39mPorter Airlines
Wed 12/36:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/23$250
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/228:55 amYUL - IAD
1 stop3h 34mPorter Airlines
Mon 12/111:40 amIAD - YUL
1 stop3h 40mPorter Airlines
Deal found 10/23$253
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/201:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Tue 12/26:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/23$257
This FlightHub deal was found by Cheapflights users on 10/22. 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.
Tue 11/181:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Sat 11/291:45 pmIAD - YUL
1 stop5h 05mPorter Airlines
Deal found 10/22$259
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Fri 12/1211:40 amIAD - YUL
1 stop4h 50mPorter Airlines
Deal found 10/22$261
This Porter Airlines deal was found by Cheapflights users on 10/22. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/211:40 pmYUL - IAD
1 stop3h 34mPorter Airlines
Tue 11/256:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/22$262
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/158:55 amYUL - IAD
1 stop3h 34mPorter Airlines
Wed 12/36:30 pmIAD - YUL
1 stop4h 15mPorter Airlines
Deal found 10/23$267
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:45 amYUL - IAD
1 stop3h 39mPorter Airlines
Wed 11/1911:40 amIAD - YUL
1 stop6h 05mPorter Airlines
Deal found 10/22$268

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 October 23, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 11/18

1:40 pm-5:14 pm

1 stop3h 34m

Washington, D.C. Dulles Intl

Sat 11/29

1:45 pm-6:50 pm

1 stop5h 05m

$259

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

12:05 pm-5:14 pm

1 stop5h 09m

Washington, D.C. Dulles Intl

Sat 11/22

1:45 pm-6:45 pm

1 stop5h 00m

$262

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 11/12

1:40 pm-5:14 pm

1 stop3h 34m

Washington, D.C. Dulles Intl

Tue 12/2

6:30 pm-10:45 pm

1 stop4h 15m

$262

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 1/23

9:15 am-11:35 am

Nonstop2h 20m

Washington, D.C. Dulles Intl

Sun 1/25

1:15 pm-3:16 pm

Nonstop2h 01m

$281

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 11/12

9:15 am-11:23 am

Nonstop2h 08m

Washington, D.C. Dulles Intl

Sun 11/16

9:45 am-11:30 am

Nonstop1h 45m

$281

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 11/28

2:13 pm-4:21 pm

Nonstop2h 08m

Washington, D.C. Dulles Intl

Sun 11/30

9:00 am-2:23 pm

1 stop5h 23m

$293

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 11/27

7:00 pm-8:54 pm

Nonstop1h 54m

Washington, D.C. Dulles Intl

Sun 11/30

9:00 am-1:22 pm

1 stop4h 22m

$294

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 12/4

4:10 pm-8:26 pm

1 stop4h 16m

Washington, D.C. Dulles Intl

Thu 12/11

9:45 am-11:38 am

Nonstop1h 53m

$294

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 11/17

4:10 pm-8:26 pm

1 stop4h 16m

Washington, D.C. Dulles Intl

Sun 11/23

9:45 am-11:30 am

Nonstop1h 45m

$294

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 12/15

7:00 pm-8:59 pm

Nonstop1h 59m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 19 results
1
2

Compare providers for flights from Pierre Elliott Trudeau Intl to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Dulles Intl. Price data was last updated on October 17, 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport (average of $158). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $279). 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 YUL to IAD?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 October 23, 2025.

One of the essential ways to save on airfare from Montreal Pierre Elliott Trudeau Intl Airport 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 51% on airfare.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Dulles Intl. Price data was last updated on October 19, 2025.

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

The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport trip
Airports
YUL

Use YULExpress to pre-book security fast track up to 72 hours before departure for a smoother experience.

Read more about YULby John Walton
IAD

Take the Silver Line Metro from IAD to reach downtown Washington in under 40 minutes, a cost-effective option.

Read more about IADby Ramsey Qubein
Our travel experts
John Walton

John Walton

Expert on YUL

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated October 23, 2025.
See what other customers who have flown with Porter Airlines, United Airlines, and Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
382 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
382 reviews
Porter Airlines
8.0
Very good
382 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,991 reviews
Porter Airlines
8.0
Very good
382 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,346 reviews
Porter Airlines
8.0
Very good
382 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    For as low as $281, Porter Airlines can have you in Washington, D.C. Dulles Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in 2h 20m. Montreal Pierre Elliott Trudeau Intl Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 488 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport is Porter Airlines. Our recent data shows that you can find tickets from as low as $197 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $220 and $246 round-trip. Porter Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport are Sun Country Air (100%), Copa Airlines (95%) and Republic Airways (95%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    While on average a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport is generally $598, our data shows the cheapest flight currently is $132. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl), you can expect to pay $214 for that flight.

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

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Dulles Intl?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Dulles Intl?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport (average of $158). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $279). 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
Woodbridge
Tysons
Arlington
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pierre Elliott Trudeau Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Baltimore flights

Top 3 airlines flying from Pierre Elliott Trudeau Intl to Dulles Intl

Discover the top 3 airlines that operate flights from Pierre Elliott Trudeau Intl 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$197Average$321FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$220Average$293FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$246Average$481FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.