HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pierre Elliott Trudeau Intl

$130+ Cheap flights from Dulles Intl (IAD) to Pierre Elliott Trudeau Intl (YUL)

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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YUL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl are usually found in January or February, booked 80 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Dulles Intl to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Pierre Elliott Trudeau Intl (YUL). 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 September 11, 2025.

Round-trip from

$276
(Trip.com)

One-way from

$130
(Delta)

Popular in

October

Cheapest in

January

Average price

$381

Good round-trip deal

$513 or less

Good one-way deal

$185 or less
From Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Find flight deals from Dulles Intl to Pierre Elliott Trudeau Intl

Cheapest flights from Dulles Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Dulles Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/10. 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.
Tue 9/234:20 pmIAD - YUL
1 stop5h 55mPorter Airlines
Tue 9/3010:45 amYUL - IAD
1 stop4h 21mPorter Airlines
Deal found 9/10$276
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:20 pmIAD - YUL
1 stop5h 55mPorter Airlines
Mon 10/208:55 amYUL - IAD
1 stop6h 11mPorter Airlines
Deal found 9/9$277
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Sat 10/254:20 pmIAD - YUL
1 stop3h 50mPorter Airlines
Tue 10/286:45 amYUL - IAD
1 stop3h 39mPorter Airlines
Deal found 9/9$278
This Mytrip deal was found by Cheapflights users on 9/9. 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 10/54:20 pmIAD - YUL
1 stop5h 55mPorter Airlines
Thu 10/910:45 amYUL - IAD
1 stop4h 21mPorter Airlines
Deal found 9/9$281
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/254:20 pmIAD - YUL
1 stop3h 50mPorter Airlines
Sat 11/18:55 amYUL - IAD
1 stop3h 34mPorter Airlines
Deal found 9/10$282
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/3011:40 amIAD - YUL
1 stop6h 05mMultiple Airlines
Mon 11/37:00 pmYUL - IAD
Nonstop1h 54mMultiple Airlines
Deal found 9/11$283
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Sat 10/259:35 amIAD - YUL
Nonstop1h 53mAir Canada
Sat 11/17:00 pmYUL - IAD
Nonstop1h 54mAir Canada
Deal found 9/10$284
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/309:45 amIAD - YUL
Nonstop1h 53mAir Canada
Mon 11/37:00 pmYUL - IAD
Nonstop1h 54mAir Canada
Deal found 9/11$285
This Trip.com deal was found by Cheapflights users on 9/10. 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 9/2511:35 amIAD - YUL
1 stop4h 25mPorter Airlines
Mon 9/2910:45 amYUL - IAD
1 stop4h 21mPorter Airlines
Deal found 9/10$286
This Gotogate deal was found by Cheapflights users on 9/11. 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.
Fri 9/264:20 pmIAD - YUL
1 stop3h 50mPorter Airlines
Mon 9/298:55 amYUL - IAD
1 stop6h 11mPorter Airlines
Deal found 9/11$289
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/1611:35 amIAD - YUL
1 stop4h 25mMultiple Airlines
Sun 10/196:45 amYUL - IAD
1 stop27h 31mMultiple Airlines
Deal found 9/9$290

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Pierre Elliott Trudeau 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 12/6

6:00 am-4:25 pm

2 stops10h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 12/12

6:45 am-10:24 am

1 stop3h 39m

$327

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 10/25

3:33 pm-11:14 pm

2 stops7h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 10/28

7:00 am-4:57 pm

1 stop9h 57m

$328

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 11/20

6:00 am-11:40 am

1 stop5h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 11/24

6:00 am-5:04 pm

2 stops11h 04m

$328

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 10/2

6:00 am-11:34 am

1 stop5h 34m

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

6:00 am-6:39 pm

2 stops12h 39m

$328

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 11/20

8:45 am-1:28 pm

1 stop4h 43m

Montreal Pierre Elliott Trudeau Intl

Mon 11/24

9:15 am-11:23 am

Nonstop2h 08m

$337

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 10/30

8:45 am-1:28 pm

1 stop4h 43m

Montreal Pierre Elliott Trudeau Intl

Tue 11/4

7:00 pm-8:54 pm

Nonstop1h 54m

$337

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 10/31

8:45 am-1:28 pm

1 stop4h 43m

Montreal Pierre Elliott Trudeau Intl

Sun 11/2

7:00 pm-8:54 pm

Nonstop1h 54m

$337

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 10/30

10:35 pm-2:00 pm

1 stop15h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 11/3

7:00 pm-8:54 pm

Nonstop1h 54m

$337

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 9/27

2:15 pm-11:18 pm

1 stop9h 03m

Montreal Pierre Elliott Trudeau Intl

Fri 10/3

7:00 am-6:24 pm

2 stops11h 24m

$345

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Tue 11/25

6:03 am-3:55 pm

2 stops9h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 12/2

6:00 am-5:01 pm

2 stops11h 01m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 24 results
1
2
3

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

For a smooth departure from IAD, use the Aerotrain for quick access to concourses, but allow time for long walks to gates.

Read more about IADby Ramsey Qubein
YUL

Upon arrival at YUL, take the Line 747 bus for an affordable ride to downtown Montreal, running every 10-15 minutes.

Read more about YULby John Walton
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

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Pierre Elliott Trudeau Intl. Price data was last updated on August 29, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 IAD to YUL?

Find hourly flight availability from Dulles Intl to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Pierre Elliott Trudeau Intl. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau 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 Pierre Elliott Trudeau Intl. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Porter Airlines, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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
8,937 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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 Dulles Intl to Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    A quick flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport can take about 7h 41m. Delta provides one of the quickest options available for as low as $328. The distance between Washington, D.C. Dulles Intl Airport and Montreal Pierre Elliott Trudeau Intl Airport is about 488 mi.

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

    According to our current data, Air Canada ($135), United Airlines ($223), and Porter Airlines ($253) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. Air Canada is priced at 61% lower than the current average price of a flight leaving 3 months from now.

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

    Consider Republic Airways (86%), United Airlines (85%) or Jazz (80%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport.

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport? While on average our users pay $996, our data indicates the cheapest price to be $137. The most popular route (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl), is priced around $234.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Brossard
Sherbrooke
Dorval

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 Dulles Intl to Pierre Elliott Trudeau Intl

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

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

Discover the top 3 airlines that operate flights from Dulles Intl to Pierre Elliott Trudeau 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$135Average$389FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$223Average$443FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$253Average$348FlexibilityNo cancel feeOn-time52%

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.