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Cheap flights from Montreal to Washington, D.C. from C$ 209

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — WAS
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Montreal to Washington, D.C. are usually found in May or March, booked 57 days in advance, depart on a Friday or Saturday and return on a Tuesday

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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 November 2025.

Tue 23/121:40 p.m.YUL - IAD
1 stop3h 34mMultiple Airlines
Sun 18/110:23 p.m.IAD - YUL
2 stops21h 51mMultiple Airlines
Deal found 6/11C$ 356
Sat 13/128:55 a.m.YUL - IAD
1 stop3h 34mPorter Airlines
Fri 2/111:40 a.m.IAD - YUL
1 stop4h 50mPorter Airlines
Deal found 3/11C$ 363
Sat 20/1211:25 a.m.YUL - IAD
1 stop5h 49mPorter Airlines
Sun 4/111:40 a.m.IAD - YUL
1 stop7h 05mPorter Airlines
Deal found 6/11C$ 364
Fri 12/1211:25 a.m.YUL - IAD
1 stop5h 49mPorter Airlines
Sun 4/111:40 a.m.IAD - YUL
1 stop4h 50mPorter Airlines
Deal found 6/11C$ 365
Tue 30/121:40 p.m.YUL - IAD
1 stop3h 34mPorter Airlines
Sat 3/16:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 6/11C$ 367
Fri 21/111:40 p.m.YUL - IAD
1 stop3h 34mPorter Airlines
Tue 25/116:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 4/11C$ 368
Sat 22/118:55 a.m.YUL - IAD
1 stop3h 34mPorter Airlines
Fri 28/1111:40 a.m.IAD - YUL
1 stop3h 40mPorter Airlines
Deal found 5/11C$ 372
Fri 12/127:00 p.m.YUL - IAD
Nonstop1h 59mMultiple Airlines
Sun 14/1211:40 a.m.IAD - YUL
1 stop4h 50mMultiple Airlines
Deal found 6/11C$ 377
Thu 20/117:00 p.m.YUL - IAD
Nonstop1h 54mAir Canada
Sun 23/119:45 a.m.IAD - YUL
Nonstop1h 45mAir Canada
Deal found 6/11C$ 379
Thu 20/118:50 a.m.YUL - DCA
1 stop3h 29mAir Canada
Sun 23/116:00 a.m.DCA - YUL
Nonstop1h 45mAir Canada
Deal found 6/11C$ 379
Thu 4/121:40 p.m.YUL - IAD
1 stop3h 34mPorter Airlines
Thu 1/16:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 6/11C$ 381
Sun 28/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Mon 5/111:40 a.m.IAD - YUL
1 stop6h 05mPorter Airlines
Deal found 6/11C$ 382

Cheap 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 November 2025.

Round-trip from

C$ 356

One-way from

C$ 209

Popular in

June

Cheapest in

May

Average price

C$ 461

Good round-trip deal

C$ 498 or less

Good one-way deal

C$ 334 or less
23/12-18/1
  • 23/12-18/1
  • 3 total stops
  • 25h 25m total
  • Montreal to Washington, D.C.
Search Deals
23/11
  • 23/11
  • 1 total stop
  • 17h 56m total
  • Montreal to Washington, D.C.
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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).
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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 November 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

Tue 30/12

1:40 p.m.-5:14 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Sat 3/1

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

1 stop4h 15m

C$ 367

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

1:40 p.m.-5:14 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Mon 5/1

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

1 stop6h 05m

C$ 367

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

1:40 p.m.-5:14 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Sun 4/1

11:40 a.m.-4:30 p.m.

1 stop4h 50m

C$ 367

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 21/11

1:40 p.m.-5:14 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Mon 24/11

11:40 a.m.-4:30 p.m.

1 stop4h 50m

C$ 367

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 5/12

11:25 a.m.-5:14 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Mon 15/12

11:40 a.m.-3:20 p.m.

1 stop3h 40m

C$ 367

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

11:25 a.m.-5:14 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Tue 2/12

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

1 stop4h 15m

C$ 368

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 21/11

1:40 p.m.-5:14 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Tue 25/11

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

1 stop4h 15m

C$ 368

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

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

Nonstop1h 54m

Washington, D.C. Dulles Intl

Sun 23/11

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

Nonstop1h 45m

C$ 379

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

1:35 p.m.-3:31 p.m.

Nonstop1h 56m

Washington, D.C. Reagan-National

Sun 23/11

6:00 a.m.-7:45 a.m.

Nonstop1h 45m

C$ 379

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 9/1

8:25 a.m.-10:21 a.m.

Nonstop1h 56m

Washington, D.C. Reagan-National

Sun 11/1

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

1 stop6h 19m

C$ 396

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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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 31 October 2025.

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$ 202). Flying from Montreal to Washington, D.C. in December is currently the most expensive (average of C$ 378). 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 November 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. Saturday 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 6 November 2025.

The most flights from YMQ to WAS are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

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 November 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
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
387 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,003 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,410 reviews
Porter Airlines
8.0
Very good
387 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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$ 379, Porter Airlines can have you in Washington, D.C. from Montreal in 1h 56m. Airlines will cover a distance of 782 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$ 306, 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$ 331 and C$ 371, respectively. You may be able to fly from Montreal to Washington, D.C. for 35% less than the average price by searching for these airlines.

  • 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 Avianca (93%), Republic Airways (93%) or Copa Airlines (81%) 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$ 1,283, our data shows the cheapest flight currently is C$ 237. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 303 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$ 202). Flying from Montreal to Washington, D.C. in December is currently the most expensive (average of C$ 378). 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
Hanover
Fairfax
Reston
Ellicott City
Oxon Hill
Gaithersburg
Herndon
Arlington
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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 261AverageC$ 407FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 306AverageC$ 384FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 331AverageC$ 483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 371AverageC$ 481FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 506AverageC$ 670FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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?

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