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$112+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YMQ
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Montreal are usually found in July or August, booked 9 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap 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 February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 2/206:30 pm
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Mon 2/236:45 am
YUL
-
IAD
1 stop3h 37m
Porter Airlines
Deal found 2/2$287
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 5/811:30 am
IAD
-
YUL
1 stop5h 45m
Porter Airlines
Mon 5/1110:35 am
YUL
-
IAD
1 stop4h 46m
Porter Airlines
Deal found 2/2$288
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:40 am
IAD
-
YUL
1 stop4h 50m
Porter Airlines
Sun 3/89:50 am
YUL
-
IAD
1 stop7h 24m
Porter Airlines
Deal found 2/3$292
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:30 pm
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Sun 3/810:55 am
YUL
-
IAD
1 stop6h 19m
Porter Airlines
Deal found 2/2$294
This oojo deal was found by Cheapflights users on 2/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:40 am
IAD
-
YUL
1 stop4h 50m
Porter Airlines
Sat 4/188:55 am
YUL
-
IAD
1 stop3h 34m
Porter Airlines
Deal found 2/2$295
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/289:45 am
IAD
-
YUL
Nonstop1h 45m
Air Canada
Sat 3/77:00 pm
YUL
-
IAD
Nonstop1h 54m
Air Canada
Deal found 2/3$297
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/2611:40 am
IAD
-
YUL
1 stop6h 05m
Multiple Airlines
Mon 4/68:00 am
YUL
-
IAD
2 stops40h 36m
Multiple Airlines
Deal found 2/2$298
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:40 am
IAD
-
YUL
1 stop4h 50m
Porter Airlines
Mon 3/26:50 am
YUL
-
IAD
1 stop3h 34m
Porter Airlines
Deal found 2/3$303
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:30 am
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Wed 6/310:35 am
YUL
-
IAD
1 stop4h 46m
Porter Airlines
Deal found 2/2$304
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/296:30 pm
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Thu 4/26:45 am
YUL
-
IAD
1 stop3h 39m
Porter Airlines
Deal found 2/1$305
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/296:30 pm
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Sat 4/48:55 am
YUL
-
IAD
1 stop3h 34m
Porter Airlines
Deal found 2/1$306

Find 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$287
(Kiwi.com)

One-way from

$112
(Trip.com)

Popular in

December

Cheapest in

July

Average price

$342

Good round-trip deal

$459 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Montreal (YMQ) flights.
Search Deals
From Washington, D.C. Dulles Intl to Montreal (YMQ)
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ).
Search Deals

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 February 3, 2026.
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

Thu 5/28

4:05 pm-10:10 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

10:35 am-3:21 pm

1 stop4h 46m

$306

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 4/24

11:40 am-5:45 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

1:40 pm-5:14 pm

1 stop3h 34m

$311

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 4/17

11:40 am-5:45 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 4/19

1:40 pm-5:14 pm

1 stop3h 34m

$312

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sun 4/19

6:30 pm-10:45 pm

1 stop4h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

8:55 am-12:29 pm

1 stop3h 34m

$312

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 4/16

6:30 pm-10:45 pm

1 stop4h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

8:55 am-12:29 pm

1 stop3h 34m

$312

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Tue 4/14

11:40 am-6:15 pm

1 stop6h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

8:55 am-12:29 pm

1 stop3h 34m

$312

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Wed 4/22

11:40 am-6:15 pm

1 stop6h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

11:25 am-5:14 pm

1 stop5h 49m

$323

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 5/28

10:11 am-12:40 am

2 stops14h 29m

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

10:35 am-3:21 pm

1 stop4h 46m

$367

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 5/28

9:45 am-11:33 am

Nonstop1h 48m

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

10:10 am-3:34 pm

1 stop5h 24m

$385

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 3/21

5:25 pm-11:13 pm

1 stop5h 48m

Montreal Pierre Elliott Trudeau Intl

Tue 3/24

9:20 am-8:46 pm

2 stops11h 26m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 22 results
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Compare providers for flights from Dulles Intl to Montreal

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 Dulles Intl to Montreal in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*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 Washington, D.C. Dulles Intl Airport-Montreal flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Montreal flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Montreal flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Montreal 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 Washington, D.C. Dulles Intl Airport-Montreal 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 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 January 30, 2026.

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 9 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal (average of $112). Flying from Washington, D.C. Dulles Intl Airport to Montreal in December is currently the most expensive (average of $260). 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 February 3, 2026.

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 in the evening could potentially save you up to 30% 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 January 31, 2026.

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. Saturday evenings 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 February 3, 2026.

The most flights from IAD to YMQ are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 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 February 3, 2026.
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.
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,236 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,684 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Entertainment

6.9

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 6h 05m. 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 $117. Other airlines that can offer you cheap pricing are Porter Airlines, from $148, and United Airlines, from $188. Users have found that Air Canada is 69% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Montreal one-way?

    $95 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from $106 and $137, respectively.

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

    Consider Jazz (75%), Avianca (72%) or Copa Airlines (69%) 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 $1,212 for a flight from Washington, D.C. Dulles Intl Airport to Montreal. The cheapest flight overall is $141 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $245.

  • 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal (average of $112). Flying from Washington, D.C. Dulles Intl Airport to Montreal in December is currently the most expensive (average of $260). 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$117Average$352FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$148Average$292FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$188Average$390FlexibilityNo cancel feeOn-time69%

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