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Cheap flights from Montreal to Washington, D.C. from C$ 186

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — WAS
5 Apr — 12 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Washington, D.C. are usually found in October or May, booked 57 days in advance, depart on a Friday or Saturday and return on a Friday

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.
Explore the most affordable flight options available from Montreal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 March 2026.

Fri 17/45:50 p.m.
YUL
-
IAD
Nonstop1h 50m
Air Canada
Mon 20/49:55 a.m.
IAD
-
YUL
Nonstop1h 43m
Air Canada
Deal found 5/3C$ 359
Wed 1/48:30 a.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Wed 8/46:00 a.m.
DCA
-
YUL
Nonstop1h 46m
Air Canada
Deal found 5/3C$ 359
Wed 22/48:30 a.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Wed 22/46:50 p.m.
DCA
-
YUL
1 stop4h 31m
Air Canada
Deal found 4/3C$ 362
Thu 26/37:00 p.m.
YUL
-
IAD
Nonstop1h 54m
Multiple Airlines
Mon 30/311:40 a.m.
IAD
-
YUL
1 stop4h 50m
Multiple Airlines
Deal found 2/3C$ 363
Fri 17/48:00 p.m.
YUL
-
DCA
Nonstop1h 55m
Air Canada
Fri 24/46:59 a.m.
DCA
-
YUL
1 stop4h 22m
Air Canada
Deal found 3/3C$ 365
Wed 1/49:15 a.m.
YUL
-
IAD
1 stop26h 33m
United Airlines
Thu 2/410:08 p.m.
IAD
-
YUL
Nonstop2h 05m
United Airlines
Deal found 6/3C$ 366
Fri 17/48:30 a.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Mon 20/412:55 p.m.
DCA
-
YUL
1 stop6h 15m
Air Canada
Deal found 5/3C$ 366
Wed 1/46:50 a.m.
YUL
-
IAD
1 stop4h 04m
Porter Airlines
Wed 22/411:40 a.m.
IAD
-
YUL
1 stop4h 50m
Porter Airlines
Deal found 4/3C$ 367
Thu 26/38:25 a.m.
YUL
-
DCA
Nonstop1h 56m
Air Canada
Mon 30/39:40 a.m.
DCA
-
YUL
1 stop4h 41m
Air Canada
Deal found 2/3C$ 370
Sun 26/49:50 a.m.
YUL
-
IAD
1 stop7h 24m
Porter Airlines
Tue 28/411:40 a.m.
IAD
-
YUL
1 stop4h 50m
Porter Airlines
Deal found 5/3C$ 372
Sun 19/48:30 a.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Sun 26/412:55 p.m.
DCA
-
YUL
1 stop6h 15m
Air Canada
Deal found 5/3C$ 372
Wed 15/46:50 a.m.
YUL
-
IAD
1 stop4h 04m
Porter Airlines
Thu 16/411:40 a.m.
IAD
-
YUL
1 stop6h 05m
Porter Airlines
Deal found 2/3C$ 373

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

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Washington, D.C. (WAS). 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 6 March 2026.

Round-trip from

C$ 359

One-way from

C$ 186

Popular in

March

Cheapest in

October

Average price

C$ 512

Good round-trip deal

C$ 496 or less

Good one-way deal

C$ 321 or less
Air Canada
  • Air Canada
  • 17/4-20/4
  • Nonstop
  • 3h 33m total
  • Montreal to Washington, D.C.
Search Deals
Porter Airlines
  • Porter Airlines
  • 15/4
  • 1 total stop
  • 4h 04m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Washington, D.C. 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 629,999 searches. Data last updated 6 March 2026.
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 - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

2:29 p.m.-6:46 p.m.

1 stop4h 17m

Washington, D.C. Reagan-National

Wed 22/4

1:50 p.m.-6:51 p.m.

1 stop5h 01m

C$ 400

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

9:30 a.m.-6:19 p.m.

2 stops8h 49m

Washington, D.C. Dulles Intl

Wed 22/4

3:00 p.m.-11:51 p.m.

1 stop8h 51m

C$ 437

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 11/4

7:00 a.m.-4:49 p.m.

2 stops9h 49m

Washington, D.C. Dulles Intl

Sat 18/4

11:04 a.m.-11:51 p.m.

2 stops12h 47m

C$ 437

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

6:45 p.m.-12:42 a.m.

1 stop5h 57m

Washington, D.C. Dulles Intl

Sat 18/4

6:00 a.m.-11:36 a.m.

1 stop5h 36m

C$ 437

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

12:42 p.m.-9:41 p.m.

1 stop8h 59m

Washington, D.C. Reagan-National

Mon 23/3

1:55 p.m.-6:35 p.m.

1 stop4h 40m

C$ 437

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 30/4

12:42 p.m.-8:59 p.m.

1 stop8h 17m

Washington, D.C. Reagan-National

Sun 3/5

6:00 a.m.-11:36 a.m.

1 stop5h 36m

C$ 437

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

7:00 a.m.-6:00 p.m.

1 stop11h 00m

Washington, D.C. Reagan-National

Sat 18/4

6:00 a.m.-11:59 a.m.

1 stop5h 59m

C$ 437
Quickest round-trip

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

2:20 p.m.-4:22 p.m.

Nonstop2h 02m

Washington, D.C. Dulles Intl

Tue 31/3

12:40 p.m.-2:40 p.m.

Nonstop2h 00m

C$ 449

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

9:15 a.m.-11:17 a.m.

Nonstop2h 02m

Washington, D.C. Dulles Intl

Sat 18/4

8:23 a.m.-1:09 p.m.

1 stop4h 46m

C$ 449

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

12:40 p.m.-9:45 p.m.

1 stop9h 05m

Washington, D.C. Reagan-National

Sat 23/5

1:44 p.m.-11:57 p.m.

1 stop10h 13m

C$ 452

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 60 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
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 Montreal to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Washington, D.C.. Price data was last updated on 27 February 2026.

The best time to book flights from Montreal to Washington, D.C. is 57 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 month to book a flight from Montreal to Washington, D.C.?

Currently, June is the cheapest month in which you can book a flight from Montreal to Washington, D.C. (average of C$ 194). Flying from Montreal to Washington, D.C. in November is currently the most expensive (average of C$ 350). 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?

Find hourly flight availability from Montreal to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 March 2026.

It’s typically best to fly out from Montreal to Washington, D.C. in the morning. Doing so could potentially save you 29% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Montreal to Washington, D.C.. Price data was last updated on 21 February 2026.

Travelers seeking maximum savings on their Montreal to Washington, D.C. flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

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

Share of one-stop round-trip flights from Montreal to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

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.?

Average round-trip fare for 1-stop flights from Montreal to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 375.

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

Shortest average travel time for 1-stop one-way flights from Montreal to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 4h 02m.

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

Average layover duration for 1-stop one-way flights from Montreal to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 15m.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 6 March 2026.
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
422 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
422 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,403 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,780 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

Find useful and relevant information for your journey from Montreal to Washington, D.C.. 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 Montreal to Washington, D.C.?

    For as low as C$ 400, Delta can have you in Washington, D.C. from Montreal in 4h 17m. Airlines will cover a distance of 782 km.

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

    Currently priced at C$ 260, United Airlines will fly you from Montreal to Washington, D.C. and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Porter Airlines and Air Canada - these airlines can fly you to your destination from C$ 296 and C$ 308, respectively. You may be able to fly from Montreal to Washington, D.C. for 41% 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$ 185), Air Canada (C$ 205), and United Airlines (C$ 229).

  • 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 (86%), Republic Airways (84%) or Avianca (82%) 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$ 1,034, our data shows the cheapest flight currently is C$ 238. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 318 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, June is the cheapest month in which you can book a flight from Montreal to Washington, D.C. (average of C$ 194). Flying from Montreal to Washington, D.C. in November is currently the most expensive (average of C$ 350). 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
Fairfax
Reston
Ellicott City
Oxon Hill
Gaithersburg
Arlington
Herndon
Manassas
Fredericksburg
Alexandria
Rockville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Discover the top 5 airlines that operate flights from Montreal to Washington, D.C.. 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 629,999 searches. Data last updated 6 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 209AverageC$ 425FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 260AverageC$ 469FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 296AverageC$ 365FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 308AverageC$ 503FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 450AverageC$ 642FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to Washington, D.C.?

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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