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Cheap flights from Montreal to Washington from C$ 235

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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
10 Mar — 17 Mar1
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 8 February 2026.

Wed 15/44:15 p.m.
YUL
-
SEA
1 stop25h 04m
WestJet
Fri 15/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 354
Wed 13/55:30 p.m.
YUL
-
SEA
1 stop28h 15m
WestJet
Sat 23/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 355
Mon 11/57:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Fri 15/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 358
Sat 9/57:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Mon 25/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 361
Sun 26/47:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Mon 25/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 364
Tue 28/47:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Wed 27/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 377
Sat 2/58:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Wed 27/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 381
Wed 6/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Tue 26/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 383
Sun 3/58:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Mon 25/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 384
Sat 4/49:00 p.m.
YUL
-
SEA
1 stop20h 19m
WestJet
Wed 13/57:35 p.m.
SEA
-
YUL
1 stop8h 25m
WestJet
Deal found 5/2C$ 385
Wed 22/44:15 p.m.
YUL
-
SEA
1 stop25h 04m
WestJet
Sun 26/47:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 8/2C$ 387
Sat 14/37:30 a.m.
YUL
-
PDX
1 stop10h 10m
Air Canada
Mon 23/37:05 p.m.
PDX
-
YUL
2 stops12h 18m
Air Canada
Deal found 5/2C$ 454

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 8 February 2026.

Round-trip from

C$ 354

One-way from

C$ 236

Popular in

January

Cheapest in

February

Average price

C$ 645

Good round-trip deal

C$ 625 or less
WestJet
  • WestJet
  • 15/4-15/5
  • 2 total stops
  • 33h 29m total
  • Montreal to Washington
Search Deals
WestJet
  • WestJet
  • 30/3
  • 2 total stops
  • 34h 34m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Washington.
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 8 February 2026.
Use the filters below to find and compare flights from Montreal to Washington that are best for you.

Fly from

Montreal

Fly to

Washington

Route

Depart

Return

Price

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

7:30 p.m.-2:19 p.m.

1 stop21h 49m

Seattle/Tacoma Intl

Mon 16/3

3:10 p.m.-7:05 a.m.

1 stop12h 55m

C$ 395

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sun 19/4

6:45 a.m.-2:19 p.m.

2 stops34h 34m

Seattle/Tacoma Intl

Sat 25/4

3:20 p.m.-7:00 a.m.

1 stop12h 40m

C$ 396

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

5:30 p.m.-6:45 p.m.

1 stop28h 15m

Seattle/Tacoma Intl

Tue 19/5

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 420

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

8:00 p.m.-9:40 a.m.

1 stop16h 40m

Seattle/Tacoma Intl

Mon 1/6

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 420

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

7:25 p.m.-6:45 p.m.

2 stops26h 20m

Seattle/Tacoma Intl

Mon 8/6

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 420

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

7:25 p.m.-6:45 p.m.

2 stops26h 20m

Seattle/Tacoma Intl

Fri 5/6

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 420

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

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

2 stops15h 00m

Seattle/Tacoma Intl

Tue 26/5

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 420

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

7:25 p.m.-9:40 a.m.

2 stops17h 15m

Seattle/Tacoma Intl

Tue 2/6

7:35 p.m.-7:00 a.m.

1 stop8h 25m

C$ 428

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

8:00 p.m.-9:40 a.m.

1 stop16h 40m

Seattle/Tacoma Intl

Sat 23/5

10:30 a.m.-6:25 p.m.

2 stops28h 55m

C$ 440

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

12:50 p.m.-11:58 p.m.

2 stops14h 08m

Portland

Fri 13/3

7:05 a.m.-11:13 p.m.

2 stops13h 08m

C$ 472

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 45 results
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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, April is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 257). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 670). 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.

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 8 February 2026.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada 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.
United Airlines
7.4
Good
9,259 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,259 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
WestJet
7.2
Good
3,256 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,698 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 9h. Montreal and State of Washington are separated by a distance of 3742 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Montreal to State of Washington one-way?

    C$ 213 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 259 and C$ 283, respectively.

  • 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.

  • What are the cheapest flights from Montreal to State of Washington?

    The cheapest flight price from Montreal to State of Washington is C$ 625. On average you can expect to pay C$ 697. The most popular route, (Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl), can usually be booked for C$ 461.

  • 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, April is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 257). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 670). 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

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Alternative routes for Montreal to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 255AverageC$ 463FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 278AverageC$ 611FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 353AverageC$ 519FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 491AverageC$ 677FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 512AverageC$ 703FlexibilityNo cancel feeOn-time69%
Search United Airlines 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!

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