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Cheap flights from Montreal to Washington, D.C. from C$ 204

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — WAS
17 May — 24 May1
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 83 days in advance, depart on a Friday or Saturday and return on a Thursday

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 17 April 2026.

Thu 28/56:30 a.m.
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Tue 2/611:30 a.m.
IAD
-
YUL
1 stop5h 45m
Porter Airlines
Deal found 13/4C$ 343
Fri 29/56:30 a.m.
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Sun 31/511:30 a.m.
IAD
-
YUL
1 stop5h 45m
Porter Airlines
Deal found 15/4C$ 346
Thu 21/56:30 a.m.
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Tue 26/511:30 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 16/4C$ 347
Tue 2/66:30 a.m.
YUL
-
IAD
1 stop4h 16m
Porter Airlines
Mon 8/64:05 p.m.
IAD
-
YUL
1 stop6h 05m
Porter Airlines
Deal found 14/4C$ 348
Fri 12/65:00 p.m.
YUL
-
IAD
Nonstop1h 58m
Air Canada
Sun 14/65:15 p.m.
IAD
-
YUL
1 stop4h 30m
Air Canada
Deal found 14/4C$ 351
Fri 12/68:00 p.m.
YUL
-
DCA
Nonstop1h 55m
Air Canada
Sun 14/64:20 p.m.
DCA
-
YUL
Nonstop1h 52m
Air Canada
Deal found 14/4C$ 352
Fri 22/51:50 p.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Mon 25/512:45 p.m.
DCA
-
YUL
1 stop5h 54m
Air Canada
Deal found 16/4C$ 355
Fri 22/55:00 p.m.
YUL
-
IAD
Nonstop1h 58m
Air Canada
Mon 25/53:45 p.m.
IAD
-
YUL
Nonstop1h 53m
Air Canada
Deal found 16/4C$ 357
Thu 7/55:00 p.m.
YUL
-
IAD
Nonstop1h 58m
Air Canada
Sun 10/59:45 a.m.
IAD
-
YUL
Nonstop1h 48m
Air Canada
Deal found 14/4C$ 361
Fri 29/56:35 p.m.
YUL
-
IAD
Nonstop2h 05m
United Airlines
Sun 31/510:11 p.m.
IAD
-
YUL
Nonstop2h 02m
United Airlines
Deal found 15/4C$ 362
Sun 10/58:30 a.m.
YUL
-
DCA
Nonstop1h 49m
Air Canada
Sat 16/54:20 p.m.
DCA
-
YUL
Nonstop1h 52m
Air Canada
Deal found 16/4C$ 363
Tue 28/46:50 a.m.
YUL
-
IAD
1 stop4h 04m
Porter Airlines
Sat 2/511:30 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 12/4C$ 365

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 17 April 2026.

Round-trip from

C$ 343

One-way from

C$ 204

Popular in

April

Cheapest in

October

Average price

C$ 488

Good round-trip deal

C$ 472 or less

Good one-way deal

C$ 299 or less
Porter Airlines
  • Porter Airlines
  • 28/5-2/6
  • 2 total stops
  • 10h 01m total
  • Montreal to Washington, D.C.
Search Deals
Porter Airlines
  • Porter Airlines
  • 4/6
  • 1 total stop
  • 4h 16m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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 - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

6:35 p.m.-8:40 p.m.

Nonstop2h 05m

Washington, D.C. Dulles Intl

Sun 31/5

10:11 p.m.-12:13 a.m.

Nonstop2h 02m

C$ 362

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

6:35 p.m.-8:40 p.m.

Nonstop2h 05m

Washington, D.C. Dulles Intl

Mon 25/5

12:44 p.m.-2:40 p.m.

Nonstop1h 56m

C$ 398

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

2:29 p.m.-10:54 p.m.

1 stop8h 25m

Washington, D.C. Reagan-National

Fri 5/6

6:00 a.m.-11:35 a.m.

1 stop5h 35m

C$ 403

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

2:29 p.m.-10:54 p.m.

1 stop8h 25m

Washington, D.C. Reagan-National

Tue 26/5

1:30 p.m.-6:53 p.m.

1 stop5h 23m

C$ 405

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

2:29 p.m.-12:51 a.m.

2 stops10h 22m

Washington, D.C. Dulles Intl

Mon 1/6

5:33 p.m.-11:57 p.m.

1 stop6h 24m

C$ 435

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

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

1 stop10h 00m

Washington, D.C. Reagan-National

Tue 5/5

2:34 p.m.-11:51 p.m.

2 stops9h 17m

C$ 435

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

11:10 a.m.-3:29 p.m.

1 stop4h 19m

Washington, D.C. Dulles Intl

Sun 31/5

3:45 p.m.-5:38 p.m.

Nonstop1h 53m

C$ 447

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

6:35 p.m.-8:37 p.m.

Nonstop2h 02m

Washington, D.C. Dulles Intl

Mon 11/5

5:42 p.m.-10:06 p.m.

1 stop4h 24m

C$ 459

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

3:25 p.m.-9:11 p.m.

1 stop5h 46m

Washington, D.C. Dulles Intl

Sat 9/5

5:42 p.m.-10:06 p.m.

1 stop4h 24m

C$ 465

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 30/4

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

1 stop5h 57m

Washington, D.C. Dulles Intl

Tue 5/5

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

1 stop8h 51m

C$ 465

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

Showing 1-10 of 57 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 10 April 2026.

The best time to book flights from Montreal to Washington, D.C. is 82 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$ 129). Flying from Montreal to Washington, D.C. in February is currently the most expensive (average of C$ 303). 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 17 April 2026.

It’s typically best to fly out from Montreal to Washington, D.C. in the morning. Doing so could potentially save you 28% 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 11 April 2026.

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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Montreal to Washington, D.C.. 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 17 April 2026.

The most flights from YMQ to WAS are scheduled on a Wednesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

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

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 17 April 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
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Food

7.6

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
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Food

7.6

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
9,603 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Food

7.6

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
10,932 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Food

7.6

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$ 362, United Airlines can have you in Washington, D.C. from Montreal in 2h 05m. 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$ 262, 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$ 297 and C$ 318, respectively. You may be able to fly from Montreal to Washington, D.C. for 40% 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$ 191), Air Canada (C$ 220), and United Airlines (C$ 230).

  • 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 Copa Airlines (86%), Air Canada (81%) or Avianca (80%) 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$ 1,001, our data shows the cheapest flight currently is C$ 221. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Reagan-National), you can expect to pay C$ 396 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$ 129). Flying from Montreal to Washington, D.C. in February is currently the most expensive (average of C$ 303). 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 210AverageC$ 457FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 262AverageC$ 497FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 297AverageC$ 366FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 318AverageC$ 507FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 452AverageC$ 653FlexibilityNo 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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