Montreal

$130+ Cheap flights from Dulles Intl (IAD) to Montreal (YMQ)

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 — YMQ
Oct 11 — Oct 181
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Montreal are usually found in November or July, booked 58 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Dulles Intl to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Montreal (YMQ). 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

December

Cheapest in

November

Average price

$351

Good round-trip deal

$513 or less

Good one-way deal

$185 or less
From Washington, D.C. Dulles Intl to Montreal (YMQ)
One-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ)
High demand for flights, 1% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montreal (YMQ).
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ).

Find flight deals from Dulles Intl to Montreal

Cheapest flights from Dulles Intl to Montreal
Explore the most affordable flight options available from Dulles Intl to Montreal. 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 Montreal 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 that are best for you.

Fly from

Dulles Intl

Fly to

Montreal

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
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Best time to book a flight from Dulles Intl to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal 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

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

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Montreal, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal (average of $270). Flying from Washington, D.C. Dulles Intl Airport to Montreal 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 YMQ?

Find hourly flight availability from Dulles Intl to Montreal. 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.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Montreal is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 31% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Montreal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Montreal 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.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Montreal

Explore weekly flight availability from Dulles Intl to Montreal. 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 September 11, 2025.

The most flights from IAD to YMQ are scheduled on a Wednesday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

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

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated September 11, 2025.
See what other customers who have flown with Porter Airlines, United Airlines, and Air Canada from Washington, D.C. Dulles Intl Airport to Montreal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.6

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

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.

Food

7.6

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

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.

Food

7.6

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

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.

Food

7.6

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

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 Montreal. 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?

    Departing from Washington, D.C. Dulles Intl Airport to Montreal will take you 7h 41m. The distance from Washington, D.C. Dulles Intl Airport to Montreal is about 488 mi.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Montreal round-trip from $135. Other airlines that can offer you cheap pricing are United Airlines, from $223, and Porter Airlines, from $253. Users have found that Air Canada is 62% cheaper than the other options available to this destination.

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

    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.

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

    On average you can expect to pay $996 for a flight from Washington, D.C. Dulles Intl Airport to Montreal. The cheapest flight overall is $137 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $234.

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

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

  • How can I find direct flights from Dulles Intl to Montreal?

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

  • Can I find deals for business class flights from Dulles Intl to Montreal?

    Yes. Cheapflights offers flight deals from Dulles Intl to Montreal 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?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal (average of $270). Flying from Washington, D.C. Dulles Intl Airport to Montreal 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

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Top 3 airlines flying from Dulles Intl to Montreal

Discover the top 3 airlines that operate flights from Dulles Intl to Montreal. 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%

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