Find flights
When to book
Airlines
FAQs

Cheap flights from Montreal to Washington from C$ 224

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Washington
Explore the most affordable flight options available from Montreal to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 August 2026.

Wed 28/107:30 a.m. -
1 stop10h 11m
Sat 31/107:00 a.m. -
1 stop9h 35m
Deal found 11/8C$ 403
Sat 29/85:35 p.m. -
1 stop9h 23m
Sat 12/97:25 a.m. -
1 stop11h 17m
Deal found 7/8C$ 416
Tue 25/83:45 p.m. -
1 stop10h 24m
Sat 12/97:25 a.m. -
1 stop11h 17m
Deal found 10/8C$ 419
Sat 29/85:35 p.m. -
1 stop9h 23m
Sat 5/911:34 p.m. -
1 stop9h 09m
Deal found 7/8C$ 423
Sat 29/86:00 a.m. -
2 stops13h 03m
Sat 5/95:30 a.m. -
2 stops15h 00m
Deal found 7/8C$ 425
Sat 29/87:00 a.m. -
1 stop9h 38m
Sat 12/96:00 a.m. -
2 stops14h 27m
Deal found 10/8C$ 426
Sun 6/96:00 a.m. -
2 stops10h 38m
Sat 19/96:00 a.m. -
2 stops14h 50m
Deal found 7/8C$ 429
Tue 13/107:40 a.m. -
2 stops13h 59m
Sat 17/1010:55 p.m. -
1 stop9h 49m
Deal found 10/8C$ 433
Fri 21/86:00 a.m. -
1 stop7h 26m
Sun 6/95:45 a.m. -
2 stops14h 55m
Deal found 7/8C$ 435
Sat 3/106:00 p.m. -
1 stop7h 42m
Sat 10/105:40 a.m. -
1 stop8h 14m
Deal found 7/8C$ 461
Fri 25/95:30 p.m. -
1 stop28h 15m
Sat 3/107:35 p.m. -
1 stop8h 30m
Deal found 7/8C$ 465
Wed 30/96:45 a.m. -
2 stops15h 00m
Wed 14/107:35 p.m. -
1 stop8h 30m
Deal found 7/8C$ 472

Find flight deals from Montreal to Washington

Keep the following information in mind while searching for Montreal to Washington flight deals. Data was last updated 12 August 2026.

Round-trip from

C$ 403

One-way from

C$ 224

Popular in

April

Cheapest in

September

Average price

C$ 716
Air Canada
  • Air Canada
  • 28/10-31/10
  • 2 total stops
  • 19h 46m total
  • Montreal to Washington
Search Deals
Air Canada
  • Air Canada
  • 5/1
  • 1 total stop
  • 10h 11m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 151 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 74 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Washington 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 12 August 2026.
Use the filters below to find and compare flights from Montreal to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

6:00 a.m.-5:14 p.m.

2 stops14h 14m

Portland

Sat 12/9

6:00 a.m.-11:27 p.m.

2 stops14h 27m

C$ 425

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

6:00 a.m.-4:03 p.m.

2 stops13h 03m

Portland

Sat 5/9

6:00 a.m.-11:52 p.m.

2 stops14h 52m

C$ 425

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

7:00 a.m.-1:38 p.m.

1 stop9h 38m

Portland

Sat 12/9

6:00 a.m.-11:27 p.m.

2 stops14h 27m

C$ 425

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

7:00 a.m.-1:38 p.m.

1 stop9h 38m

Portland

Sat 5/9

7:05 a.m.-11:30 p.m.

2 stops13h 25m

C$ 425
Quickest round-trip

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

6:00 a.m.-10:26 a.m.

1 stop7h 26m

Portland

Tue 1/9

11:50 a.m.-11:40 p.m.

1 stop8h 50m

C$ 426

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

12:30 p.m.-6:00 p.m.

1 stop8h 30m

Portland

Sun 30/8

11:34 p.m.-11:43 a.m.

1 stop9h 09m

C$ 432

MontrealPortland

YUL Montreal Pierre Elliott Trudeau Intl - PDX Portland

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:00 a.m.-10:26 a.m.

1 stop7h 26m

Portland

Sat 19/9

10:57 p.m.-4:19 p.m.

2 stops14h 22m

C$ 432

MontrealSeattle

YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

6:00 a.m.-10:26 a.m.

1 stop7h 26m

Seattle/Tacoma Intl

Tue 22/9

9:43 a.m.-11:27 p.m.

1 stop10h 44m

C$ 483

MontrealSeattle

YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 30/1

12:45 p.m.-12:09 a.m.

1 stop14h 24m

Seattle/Tacoma Intl

Tue 2/2

11:45 a.m.-11:10 p.m.

1 stop8h 25m

C$ 483

MontrealSeattle

YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

6:00 a.m.-2:49 p.m.

1 stop11h 49m

Seattle/Tacoma Intl

Tue 15/9

8:59 a.m.-11:50 p.m.

1 stop11h 51m

C$ 483

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Montreal to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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

What is the cheapest month to book a flight from Montreal to State of Washington?

Currently, September is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 605). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 840). 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.

How much does it cost to fly round-trip from Montreal to State of Washington?

Airfare is below average for this route at the moment.
Montreal to State of Washington flights typically cost between C$ 575 and C$ 861 in October.
The cheapest round-trip price found within the last 5 days was C$ 461 on Air Canada (3 Oct-10 Oct).

How far ahead should I book a flight from Montreal to State of Washington?

The best time to book flights from Montreal to State of Washington is 44 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.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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. Reviews last updated 12 August 2026.
Check out reviews from past customers who have flown with Delta,United Airlines, andWestJet from Montreal to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,505 reviews
Check prices

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,505 reviews
Delta
7.8
Good
8,505 reviews
Check prices

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
10,111 reviews
Delta
7.8
Good
8,505 reviews
Check prices

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
WestJet
7.2
Good
3,431 reviews
Delta
7.8
Good
8,505 reviews
Check prices

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Air Canada
7.1
Good
11,464 reviews
Delta
7.8
Good
8,505 reviews
Check prices

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

Find useful and relevant information for your journey from Montreal to Washington. 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 State of Washington?

    Departing from Montreal to State of Washington will take you 10h 37m. Montreal and State of Washington are separated by a distance of 3463 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Montreal to State of Washington?

    When deciding which route to take from Montreal to State of Washington consider Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl, Montreal Pierre Elliott Trudeau Intl - Portland or Montreal Pierre Elliott Trudeau Intl - Spokane as they are the most popular.

  • Can I find deals for flights from Montreal to Washington that include hotel bookings?

    Yes. In addition to deals on Montreal to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Washington.

  • Can I find deals for business class flights from Montreal to Washington?

    Yes. Cheapflights offers flight deals from Montreal to Washington 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 State of Washington?

    Currently, September is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 605). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 840). 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

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.

Alternative routes for Montreal to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Miami flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to Orlando flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Boston flights
Ottawa to Newark flights
Ottawa to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Tampa flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Nashville flights
Pierre Elliott Trudeau Intl to Hobby flights
Ottawa to Orlando flights
Québec City to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Midway flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Atlanta flights
Pierre Elliott Trudeau Intl to Honolulu flights
Québec City to Newark flights
Pierre Elliott Trudeau Intl to George Bush Intcntl flights
Québec City to Orlando flights
Pierre Elliott Trudeau Intl to Sky Harbor Intl flights
Pierre Elliott Trudeau Intl to Ontario flights
Pierre Elliott Trudeau Intl to Philadelphia flights
Ottawa to LaGuardia flights
Québec City to Miami flights
Ottawa to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to Seattle flights
Ottawa to O'Hare Intl flights
Québec City to LaGuardia flights
Pierre Elliott Trudeau Intl to San Diego flights
Ottawa to Las Vegas flights
Pierre Elliott Trudeau Intl to Cincinnati flights
Pierre Elliott Trudeau Intl to Denver flights
Pierre Elliott Trudeau Intl to Baltimore flights
Pierre Elliott Trudeau Intl to Love Field flights
Ottawa to Dulles Intl flights
Ottawa to Dallas/Fort Worth flights
Québec City to O'Hare Intl flights
Pierre Elliott Trudeau Intl to Detroit flights
Québec City to Las Vegas flights
Ottawa to Boston flights
Pierre Elliott Trudeau Intl to Fort Myers flights

Top 5 airlines flying from Montreal to Washington

Discover the top 5 airlines that operate flights from Montreal to Washington. 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 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 283AverageC$ 742FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 412AverageC$ 548FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 423AverageC$ 628FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 501AverageC$ 868FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 534AverageC$ 726FlexibilityNo cancel feeOn-time67%
Search Air Canada 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?

Cheapflights makes it easy to find Montreal to Washington flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Washington?

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 from Montreal.

Can Cheapflights find flights from Montreal to Washington with no change fees?

Need flexible booking options for your flight to Washington from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Washington 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.