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Cheap flights from Montreal to Washington, D.C. from C$ 245

YMQ — WAS
15 Oct — 22 Oct1
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 30/106:25 p.m. -
Nonstop1h 58m
Sun 1/119:55 a.m. -
Nonstop1h 43m
Deal found 13/9C$ 391
Tue 10/1110:10 a.m. -
1 stop5h 35m
Sat 14/119:55 a.m. -
1 stop5h 30m
Deal found 13/9C$ 409
Fri 20/1111:10 a.m. -
1 stop4h 35m
Sun 22/115:20 p.m. -
1 stop4h 25m
Deal found 11/9C$ 416
Fri 20/1111:10 a.m. -
1 stop7h 08m
Sun 22/1112:55 p.m. -
1 stop5h 48m
Deal found 14/9C$ 416
Fri 6/1110:10 a.m. -
1 stop5h 35m
Mon 9/115:20 p.m. -
1 stop4h 25m
Deal found 10/9C$ 417
Fri 6/114:10 p.m. -
1 stop6h 28m
Mon 9/1112:55 p.m. -
1 stop5h 48m
Deal found 10/9C$ 417
Thu 29/1012:10 p.m. -
1 stop6h 08m
Thu 5/116:59 a.m. -
1 stop4h 26m
Deal found 14/9C$ 419
Mon 23/116:25 p.m. -
Nonstop1h 58m
Sat 28/115:20 p.m. -
1 stop4h 25m
Deal found 10/9C$ 420
Sat 24/108:35 a.m. -
1 stop3h 34m
Mon 26/1011:05 a.m. -
Nonstop1h 41m
Deal found 14/9C$ 420
Fri 20/116:25 p.m. -
Nonstop1h 58m
Sun 29/119:55 a.m. -
Nonstop1h 43m
Deal found 11/9C$ 422
Fri 13/119:45 a.m. -
1 stop7h 58m
Sun 15/116:25 p.m. -
1 stop3h 45m
Deal found 10/9C$ 423
Sun 11/108:30 a.m. -
Nonstop1h 50m
Sun 18/106:59 a.m. -
1 stop6h 22m
Deal found 13/9C$ 423

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

Round-trip from

C$ 391

One-way from

C$ 245

Popular in

August

Cheapest in

October

Average price

C$ 472

Good round-trip deal

C$ 447 or less

Good one-way deal

C$ 251 or less
Air Canada
  • Air Canada
  • 30/10-1/11
  • Nonstop
  • 3h 41m total
  • Montreal to Washington, D.C.
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Air Canada
  • Air Canada
  • 8/11-31/12
  • 1 total stop
  • 6h 22m total
  • Montreal to Washington, D.C.
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Highest demand for flights based on searches. 11% potential increase in price (C$ 82 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
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Average for round-trip flights in September 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 - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

5:05 p.m.-7:00 p.m.

Nonstop1h 55m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 255

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

6:30 a.m.-10:45 a.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 269

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

9:00 a.m.-3:10 p.m.

1 stop6h 10m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 270
Quickest round-trip

MontrealWashington, D.C.

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

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

1:50 p.m.-3:40 p.m.

Nonstop1h 50m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 270

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

4:10 p.m.-8:25 p.m.

1 stop4h 15m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 275

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

2:43 p.m.-12:41 a.m.

1 stop9h 58m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 277

MontrealWashington, D.C.

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

YULDCA

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

12:44 p.m.-7:33 p.m.

1 stop6h 49m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 277

MontrealWashington, D.C.

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

YULDCA

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

7:00 a.m.-5:26 p.m.

1 stop10h 26m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 277

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

9:30 a.m.-4:42 p.m.

2 stops7h 12m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 281

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

9:15 a.m.-11:13 a.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 313

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 56 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$ 437). Flying from Montreal to Washington, D.C. in July is currently the most expensive (average of C$ 551). 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. in the morning. Doing so could potentially save you 22% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from Montreal to Washington, D.C.

The most flights from YMQ to WAS are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

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$ 465 and C$ 515 in October.
The cheapest round-trip price found within the last 5 days was C$ 391 on Air Canada (30 Oct-1 Nov).

What’s the top layover airport for flights from Montreal to Washington, D.C.?

Toronto (YTZ) – chosen by Cheapflights users on 95% of one-stop itineraries from Montreal to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Washington, D.C.?

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 376.

What’s the fastest layover option from Montreal to Washington, D.C.?

Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 3h 43m.

Which airport typically offers the quickest layover for flights from Montreal to Washington, D.C.?

Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 08m.

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 33 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 Friday mornings when fares are most often at their lowest. Sunday 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,United Airlines, andAir 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
461 reviews
Check prices

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

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
461 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

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
7.4
Good
10,209 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

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
11,631 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Comfort

8.0

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

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$ 429, Delta can have you in Washington, D.C. from Montreal in 4h 12m. 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$ 301, 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 Delta and Air Canada - these airlines can fly you to your destination from C$ 335 and C$ 353, respectively. You may be able to fly from Montreal to Washington, D.C. for 38% 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$ 188), Air Canada (C$ 248), and United Airlines (C$ 281).

  • 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. Reagan-National, Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl 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 Sun Country Air (100%), Avianca (91%) or Copa Airlines (77%) 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$ 637, our data shows the cheapest flight currently is C$ 303. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Reagan-National), you can expect to pay C$ 427 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$ 437). Flying from Montreal to Washington, D.C. in July is currently the most expensive (average of C$ 551). 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
Alexandria
Hanover
Oxon Hill
Gaithersburg
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Montreal to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 301AverageC$ 436FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 335AverageC$ 591FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 353AverageC$ 503FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 358AverageC$ 711FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 605AverageC$ 809FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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Cheapflights helps you search for flights from Montreal to Washington, D.C. via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

Can Cheapflights notify me if prices for flights from Montreal to Washington, D.C. become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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