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Cheap flights from Montreal to Washington, D.C. from C$ 194

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — WAS
22 Jan — 29 Jan1
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 70 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 23 December 2025.

Wed 31/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Mon 5/16:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 20/12C$ 558
Mon 29/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Sat 3/111:35 a.m.IAD - YUL
1 stop4h 55mPorter Airlines
Deal found 22/12C$ 574
Fri 26/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Mon 12/111:35 a.m.IAD - YUL
1 stop4h 55mPorter Airlines
Deal found 22/12C$ 584
Tue 30/124:45 p.m.YUL - IAD
1 stop7h 30mUnited Airlines
Sun 4/16:30 a.m.IAD - YUL
1 stop14h 47mUnited Airlines
Deal found 21/12C$ 585
Tue 30/124:45 p.m.YUL - IAD
1 stop7h 30mUnited Airlines
Thu 1/18:15 a.m.IAD - YUL
1 stop5h 45mUnited Airlines
Deal found 22/12C$ 620
Tue 30/124:45 p.m.YUL - DCA
1 stop5h 54mUnited Airlines
Sat 3/11:00 p.m.DCA - YUL
1 stop8h 17mUnited Airlines
Deal found 22/12C$ 620
Wed 31/126:00 a.m.YUL - IAD
1 stop11h 30mUnited Airlines
Wed 31/1210:33 p.m.IAD - YUL
1 stop15h 27mUnited Airlines
Deal found 23/12C$ 621
Tue 30/124:45 p.m.YUL - DCA
1 stop5h 54mUnited Airlines
Sun 4/16:30 a.m.DCA - YUL
1 stop14h 47mUnited Airlines
Deal found 22/12C$ 631
Wed 31/124:45 p.m.YUL - DCA
1 stop7h 14mUnited Airlines
Mon 5/16:00 a.m.DCA - YUL
Nonstop1h 45mUnited Airlines
Deal found 20/12C$ 646
Wed 31/124:00 p.m.YUL - IAD
1 stop5h 25mAir Canada
Mon 5/19:45 a.m.IAD - YUL
Nonstop1h 45mAir Canada
Deal found 20/12C$ 651
Thu 25/124:10 p.m.YUL - IAD
1 stop4h 16mAir Canada
Mon 12/19:45 a.m.IAD - YUL
Nonstop1h 45mAir Canada
Deal found 22/12C$ 655
Fri 26/129:15 a.m.YUL - IAD
Nonstop2h 20mUnited Airlines
Mon 12/18:20 a.m.IAD - YUL
1 stop10h 51mUnited Airlines
Deal found 22/12C$ 661

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 23 December 2025.

Round-trip from

C$ 340

One-way from

C$ 194

Popular in

December

Cheapest in

October

Average price

C$ 542

Good round-trip deal

C$ 551 or less

Good one-way deal

C$ 373 or less
Porter Airlines
  • Porter Airlines
  • 12/3-16/3
  • 2 total stops
  • 11h 54m total
  • Montreal to Washington, D.C.
Search Deals
5/2
  • 5/2
  • 1 total stop
  • 15h 59m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 23 December 2025.
Use the filters below to find and compare flights from Montreal to Washington, D.C. that are best for you.

Fly from

Montreal

Fly to

Washington, D.C.

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

6:45 a.m.-10:24 a.m.

1 stop3h 39m

Washington, D.C. Dulles Intl

Mon 16/3

11:40 a.m.-5:45 p.m.

1 stop6h 05m

C$ 374

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

6:45 a.m.-10:22 a.m.

1 stop3h 37m

Washington, D.C. Dulles Intl

Sun 22/2

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

1 stop4h 15m

C$ 374

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/1

7:00 p.m.-8:54 p.m.

Nonstop1h 54m

Washington, D.C. Dulles Intl

Sun 11/1

11:35 a.m.-4:30 p.m.

1 stop4h 55m

C$ 377

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 26/1

7:00 p.m.-8:54 p.m.

Nonstop1h 54m

Washington, D.C. Dulles Intl

Fri 30/1

9:45 a.m.-11:30 a.m.

Nonstop1h 45m

C$ 387

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

7:00 p.m.-8:54 p.m.

Nonstop1h 54m

Washington, D.C. Dulles Intl

Wed 28/1

9:45 a.m.-11:30 a.m.

Nonstop1h 45m

C$ 387

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

8:25 a.m.-10:23 a.m.

Nonstop1h 58m

Washington, D.C. Reagan-National

Wed 28/1

4:15 p.m.-5:55 p.m.

Nonstop1h 40m

C$ 387

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

8:55 a.m.-11:47 p.m.

3 stops14h 52m

Baltimore/Washington

Wed 11/2

1:00 p.m.-10:29 p.m.

1 stop9h 29m

C$ 391

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Sat 28/2

8:00 p.m.-9:58 p.m.

Nonstop1h 58m

Washington, D.C. Reagan-National

Sun 8/3

12:55 p.m.-7:14 p.m.

1 stop6h 19m

C$ 394

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

8:25 a.m.-10:23 a.m.

Nonstop1h 58m

Washington, D.C. Reagan-National

Wed 11/2

12:55 p.m.-7:14 p.m.

1 stop6h 19m

C$ 402

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

2:13 p.m.-4:24 p.m.

Nonstop2h 11m

Washington, D.C. Dulles Intl

Sat 31/1

1:15 p.m.-3:16 p.m.

Nonstop2h 01m

C$ 405

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/12

Showing 1-10 of 55 results
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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 19 December 2025.

The best time to book flights from Montreal to Washington, D.C. is 70 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$ 197). Flying from Montreal to Washington, D.C. in November is currently the most expensive (average of C$ 352). 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 23 December 2025.

It’s typically best to fly out from Montreal to Washington, D.C. in the afternoon. Doing so could potentially save you 39% 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 16 December 2024.

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

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 23 December 2025.

The most flights from YMQ to WAS are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 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 23 December 2025.
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
399 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
399 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,109 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,551 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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$ 387, Porter Airlines can have you in Washington, D.C. from Montreal in 1h 54m. 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$ 263, 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$ 298 and C$ 316, 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$ 186), Air Canada (C$ 207), and United Airlines (C$ 231).

  • 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 (89%), Avianca (85%) or Republic Airways (85%) 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$ 719, our data shows the cheapest flight currently is C$ 231. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 313 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$ 197). Flying from Montreal to Washington, D.C. in November is currently the most expensive (average of C$ 352). 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

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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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 211AverageC$ 396FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 298AverageC$ 370FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 321AverageC$ 470FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 376AverageC$ 472FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 493AverageC$ 654FlexibilityNo 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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