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Montreal

$149+ Cheap flights from Dulles Intl (IAD) to Montreal (YMQ)

IAD — YMQ
Nov 23 — Nov 301
Mon 11/23
Mon 11/30
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Montreal are usually found in February or March, booked 50 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Dulles Intl to Montreal

Cheapest flights from Dulles Intl to Montreal

Fri 12/119:05 am -
Nonstop1h 43m
Fri 12/186:25 pm -
Nonstop1h 58m
Deal found 10/22$339
Wed 11/49:55 am -
2 stops8h 48m
Sun 11/810:25 am -
1 stop6h 22m
Deal found 10/20$341
Fri 12/49:55 am -
2 stops10h 58m
Mon 12/78:50 am -
2 stops7h 57m
Deal found 10/22$342
Wed 11/119:55 am -
Nonstop1h 43m
Sun 11/156:25 pm -
Nonstop1h 58m
Deal found 10/21$343
Sun 12/131:19 pm -
Nonstop1h 57m
Sat 12/199:15 am -
Nonstop2h 19m
Deal found 10/22$344
Wed 11/189:55 am -
Nonstop1h 43m
Sat 11/2111:10 am -
1 stop4h 35m
Deal found 10/20$345
Sun 11/86:05 am -
1 stop5h 52m
Wed 11/114:50 pm -
1 stop6h 31m
Deal found 10/23$346
Wed 11/1811:20 am -
1 stop4h 40m
Sat 11/218:00 am -
1 stop14h 02m
Deal found 10/20$347
Fri 11/136:25 pm -
1 stop3h 45m
Sat 11/218:00 am -
1 stop14h 02m
Deal found 10/20$348
Wed 12/911:20 am -
1 stop4h 40m
Sun 12/139:45 am -
1 stop8h 00m
Deal found 10/20$349
Sun 11/85:20 pm -
1 stop4h 25m
Thu 11/1210:10 am -
1 stop5h 35m
Deal found 10/20$350

Find flight deals from Dulles Intl to Montreal

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(Air Canada)

One-way from

$149
(Air Canada)

Popular in

October

Cheapest in

February

Average price

$459

Good round-trip deal

$466 or less

Good one-way deal

$237 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Montreal (YMQ) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Montreal (YMQ) flights.
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From Washington, D.C. Dulles Intl to Montreal (YMQ)
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One-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ)
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Highest demand for flights based on searches. 6% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montreal (YMQ).
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montreal (YMQ).
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Cheapflights Fare Finder

 
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

Fly to

Route

Depart

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Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sat 3/20

9:55 am-11:33 am

Nonstop1h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$150

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Wed 11/18

10:35 pm-8:32 am

1 stop9h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$160

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Mon 11/16

8:37 am-1:28 pm

1 stop4h 51m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$176

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Tue 12/8

3:34 pm-10:17 pm

2 stops30h 43m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$180

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sun 11/8

1:19 pm-3:16 pm

Nonstop1h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$183

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Fri 12/18

9:05 am-10:48 am

Nonstop1h 43m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$196

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Wed 12/23

1:19 pm-3:16 pm

Nonstop1h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$233

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Thu 11/5

11:20 am-7:12 pm

1 stop7h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$244

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Fri 10/30

1:19 pm-3:16 pm

Nonstop1h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$256

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sat 12/26

8:25 am-9:42 pm

1 stop13h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 23 resultsSorted by cheapest first
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  • 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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Montreal

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 $320). Flying from Washington, D.C. Dulles Intl Airport to Montreal in September is currently the most expensive (average of $510). 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?

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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 28% on airfare.

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

Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Montreal flights typically cost between $378 and $550 in December.
The cheapest round-trip price found within the last 5 days was $339 on Air Canada (Dec 11-Dec 15).

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

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 61 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 day to fly from Washington, D.C. Dulles Intl Airport to Montreal?

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

Reviews of airlines servicing Montreal

See what other customers who have flown with Porter Airlines,United Airlines, andAir 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
8.0
Very good
467 reviews

Crew

8.6

Entertainment

6.9

Food

7.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Porter Airlines
8.0
Very good
467 reviews
Porter Airlines
8.0
Very good
467 reviews

Crew

8.6

Entertainment

6.9

Food

7.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
United Airlines
7.3
Good
10,432 reviews
Porter Airlines
8.0
Very good
467 reviews

Crew

8.6

Entertainment

6.9

Food

7.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Canada
7.1
Good
11,805 reviews
Porter Airlines
8.0
Very good
467 reviews

Crew

8.6

Entertainment

6.9

Food

7.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Related info for your journey

  • 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 5h 52m. The distance from Washington, D.C. Dulles Intl Airport to Montreal is about 488 mi. This flight may include one or multiple stops.

  • 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 $115. Other airlines that can offer you cheap pricing are Air Canada, from $144, and United Airlines, from $266. Users have found that Porter Airlines is 72% 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 Avianca (82%), Copa Airlines (82%) or Republic Airways (82%) 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 $1,451 for a flight from Washington, D.C. Dulles Intl Airport to Montreal. The cheapest flight overall is $166 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $264.

  • 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 $320). Flying from Washington, D.C. Dulles Intl Airport to Montreal in September is currently the most expensive (average of $510). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Dulles Intl to Montreal

AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$115Average$332FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$144Average$424FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$266Average$533FlexibilityNo cancel feeOn-time69%

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