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Cheap flights from Montreal to Washington, D.C. from C$ 235

YMQ — WAS
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Washington, D.C.

Fri 13/119:45 a.m. -
1 stop7h 59m
Sun 22/1111:20 a.m. -
1 stop4h 40m
Deal found 26/10C$ 396
Fri 13/118:00 p.m. -
Nonstop1h 59m
Sun 15/116:00 a.m. -
Nonstop1h 46m
Deal found 25/10C$ 396
Mon 30/1110:25 a.m. -
1 stop6h 22m
Thu 31/129:05 a.m. -
Nonstop1h 43m
Deal found 26/10C$ 397
Sat 28/1110:25 a.m. -
1 stop6h 22m
Tue 1/129:05 a.m. -
Nonstop1h 43m
Deal found 27/10C$ 400
Tue 24/118:25 a.m. -
Nonstop1h 59m
Sat 28/1112:55 p.m. -
1 stop5h 48m
Deal found 27/10C$ 401
Fri 20/118:25 a.m. -
Nonstop1h 59m
Mon 23/1112:55 p.m. -
1 stop5h 48m
Deal found 25/10C$ 403
Mon 9/1110:25 a.m. -
1 stop6h 22m
Fri 13/115:20 p.m. -
1 stop4h 25m
Deal found 26/10C$ 404
Thu 12/1110:25 a.m. -
1 stop6h 22m
Sun 15/115:20 p.m. -
1 stop4h 25m
Deal found 27/10C$ 406
Fri 13/116:35 p.m. -
1 stop6h 06m
Sun 15/116:00 a.m. -
1 stop5h 52m
Deal found 27/10C$ 407
Thu 19/117:00 a.m. -
1 stop10h 20m
Mon 23/119:00 a.m. -
1 stop8h 27m
Deal found 27/10C$ 407
Fri 13/119:45 a.m. -
1 stop7h 59m
Sun 15/1111:20 a.m. -
1 stop4h 40m
Deal found 26/10C$ 410
Sat 5/128:00 p.m. -
Nonstop1h 59m
Tue 22/126:00 a.m. -
Nonstop1h 46m
Deal found 27/10C$ 410

Find flight deals from Montreal to Washington, D.C.

Round-trip from

C$ 396

One-way from

C$ 235

Popular in

August

Cheapest in

May

Average price

C$ 523

Good round-trip deal

C$ 459 or less

Good one-way deal

C$ 294 or less
Porter Airlines
  • Porter Airlines
  • 13/11-22/11
  • 2 total stops
  • 12h 39m total
  • Montreal to Washington, D.C.
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Delta
  • Delta
  • 23/11-31/12
  • 1 total stop
  • 4h 57m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 83 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 14 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 Montreal (YMQ) to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Montreal (YMQ) to Washington, D.C. (WAS).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Montreal to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - DCA Washington, D.C. Reagan-National

YULDCA

Montreal Pierre Elliott Trudeau Intl

Tue 24/11

2:30 p.m.-10:20 p.m.

1 stop7h 50m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 235

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - DCA Washington, D.C. Reagan-National

YULDCA

Montreal Pierre Elliott Trudeau Intl

Sat 9/1

9:30 a.m.-3:59 p.m.

1 stop6h 29m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 235

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - DCA Washington, D.C. Reagan-National

YULDCA

Montreal Pierre Elliott Trudeau Intl

Sat 9/1

5:10 p.m.-10:38 p.m.

1 stop5h 28m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 241

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 13/11

6:35 p.m.-12:41 a.m.

1 stop6h 06m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 245
Quickest round-trip

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 9/12

6:25 p.m.-8:23 p.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 252

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - DCA Washington, D.C. Reagan-National

YULDCA

Montreal Pierre Elliott Trudeau Intl

Wed 25/11

8:25 a.m.-10:24 a.m.

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 252

MontrealWashington, D.C.

YUL Montreal Pierre Elliott Trudeau Intl - DCA Washington, D.C. Reagan-National

YULDCA

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

1:25 p.m.-3:24 p.m.

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 264

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 25/12

9:15 a.m.-11:34 a.m.

Nonstop2h 19m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 271

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

8:50 a.m.-4:47 p.m.

2 stops7h 57m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 280

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 1/12

9:15 a.m.-11:28 a.m.

Nonstop2h 13m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 285

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Montreal to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Montreal with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, February is the cheapest month in which you can book a flight from Montreal to Washington, D.C. (average of C$ 445). Flying from Montreal to Washington, D.C. in July is currently the most expensive (average of C$ 554). 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 YMQ to WAS?

It’s typically best to fly out from Montreal to Washington, D.C. at noon. Doing so could potentially save you 17% on the flight price compared to flying in the evening, which is usually more expensive.

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

Airfare is below average for this route at the moment.
Montreal to Washington, D.C. flights typically cost between C$ 424 and C$ 512 in November.
The cheapest round-trip price found within the last 5 days was C$ 396 on Porter Airlines (13 Nov-22 Nov).

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

The best time to book flights from Montreal to Washington, D.C. is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Travelers seeking maximum savings on their Montreal to Washington, D.C. flight should consider departing on Wednesday mornings 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 Washington, D.C.

Get a feel of what it's like to fly with Porter Airlines and Air Canada from Montreal to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
467 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

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
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

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
11,833 reviews
Porter Airlines
8.0
Very good
467 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.6

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 Montreal to Washington, D.C.?

    For as low as C$ 483, Delta can have you in Washington, D.C. from Montreal in 2h 13m. Airlines will cover a distance of 785 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 303, Porter Airlines will fly you from Montreal to Washington, D.C. and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from C$ 355 and C$ 416, respectively. You may be able to fly from Montreal to Washington, D.C. for 39% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Montreal to Washington, D.C. are Porter Airlines (C$ 195), Air Canada (C$ 249), and United Airlines (C$ 280).

  • What are the most popular routes from Montreal to Washington, D.C.?

    When deciding which route to take from Montreal to Washington, D.C. consider Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl, Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Reagan-National or Montreal Pierre Elliott Trudeau Intl - Baltimore/Washington as they are the most popular.

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

    Consider Copa Airlines (93%), Republic Airways (93%) or Avianca (90%) when booking your flight. These represent the most reliable airlines when flying from Montreal to Washington, D.C..

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

    While on average a flight from Montreal to Washington, D.C. is generally C$ 1,699, our data shows the cheapest flight currently is C$ 284. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 407 for that flight.

  • Can I find deals for flights from Montreal to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Montreal to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Washington, D.C.?

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

  • Can I find deals for business class flights from Montreal to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Montreal to Washington, D.C. 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 to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Montreal to Washington, D.C. (average of C$ 445). Flying from Montreal to Washington, D.C. in July is currently the most expensive (average of C$ 554). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
College Park
Alexandria
Oxon Hill
Gaithersburg
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Montreal to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 303AverageC$ 431FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 355AverageC$ 514FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 410AverageC$ 743FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 459AverageC$ 594FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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Why should you use Cheapflights to find cheap flight tickets from Montreal to Washington, D.C.?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Montreal.

Can Cheapflights find flights from Montreal to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Montreal to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

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