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Cheap flights from Montreal to Washington from C$ 234

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
24 Feb — 3 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 25 January 2026.

Sun 10/56:45 a.m.
YUL
-
SEA
1 stop9h 23m
WestJet
Sun 17/52:05 p.m.
SEA
-
YUL
1 stop7h 37m
WestJet
Deal found 21/1C$ 308
Wed 13/56:45 a.m.
YUL
-
SEA
1 stop9h 23m
WestJet
Sat 23/57:05 a.m.
SEA
-
YUL
1 stop14h 37m
WestJet
Deal found 22/1C$ 351
Sun 17/56:45 a.m.
YUL
-
SEA
1 stop9h 23m
WestJet
Mon 25/57:05 a.m.
SEA
-
YUL
2 stops14h 35m
WestJet
Deal found 22/1C$ 352
Mon 9/34:15 p.m.
YUL
-
SEA
1 stop25h 04m
WestJet
Mon 16/33:10 p.m.
SEA
-
YUL
1 stop12h 55m
WestJet
Deal found 23/1C$ 393
Thu 5/37:30 p.m.
YUL
-
SEA
1 stop21h 49m
WestJet
Wed 11/33:10 p.m.
SEA
-
YUL
1 stop12h 55m
WestJet
Deal found 22/1C$ 397
Fri 6/27:30 a.m.
YUL
-
PDX
1 stop10h 10m
Air Canada
Sun 15/29:50 a.m.
PDX
-
YUL
1 stop8h 10m
Air Canada
Deal found 23/1C$ 419
Sat 7/28:05 a.m.
YUL
-
PDX
2 stops9h 35m
Air Canada
Sun 15/29:50 a.m.
PDX
-
YUL
2 stops13h 03m
Air Canada
Deal found 24/1C$ 451
Fri 20/22:40 p.m.
YUL
-
PDX
1 stop8h 50m
Delta
Mon 23/29:45 p.m.
PDX
-
YUL
1 stop10h 40m
Delta
Deal found 23/1C$ 459
Tue 14/48:05 a.m.
YUL
-
PDX
2 stops9h 35m
Air Canada
Sat 18/49:50 a.m.
PDX
-
YUL
2 stops11h 41m
Air Canada
Deal found 23/1C$ 464
Fri 20/25:25 p.m.
YUL
-
PDX
1 stop8h 49m
United Airlines
Mon 23/25:05 a.m.
PDX
-
YUL
1 stop8h 53m
United Airlines
Deal found 23/1C$ 531
Fri 20/21:10 p.m.
YUL
-
PDX
1 stop8h 39m
Air Canada
Mon 23/27:57 p.m.
PDX
-
YUL
1 stop17h 52m
Air Canada
Deal found 24/1C$ 534
Mon 30/33:45 p.m.
YUL
-
PDX
1 stop22h 03m
American Airlines
Fri 3/411:59 p.m.
PDX
-
YUL
1 stop12h 00m
American Airlines
Deal found 23/1C$ 537

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 25 January 2026.

Round-trip from

C$ 351

One-way from

C$ 234

Popular in

January

Cheapest in

February

Average price

C$ 893

Good round-trip deal

C$ 626 or less
WestJet
  • WestJet
  • 13/5-23/5
  • 2 total stops
  • 24h 00m total
  • Montreal to Washington
Search Deals
WestJet
  • WestJet
  • 3/3
  • 1 total stop
  • 21h 49m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 25 January 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

Wed 13/5

6:45 a.m.-1:08 p.m.

1 stop9h 23m

Seattle/Tacoma Intl

Sat 23/5

7:05 a.m.-12:42 a.m.

1 stop14h 37m

C$ 351

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

6:45 a.m.-1:08 p.m.

1 stop9h 23m

Seattle/Tacoma Intl

Mon 25/5

7:05 a.m.-12:40 a.m.

2 stops14h 35m

C$ 352

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

4:15 p.m.-2:19 p.m.

1 stop25h 04m

Seattle/Tacoma Intl

Mon 16/3

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

1 stop12h 55m

C$ 393

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 5/3

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

1 stop21h 49m

Seattle/Tacoma Intl

Wed 11/3

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

1 stop12h 55m

C$ 397

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

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

2 stops34h 34m

Seattle/Tacoma Intl

Tue 21/4

3:10 p.m.-12:38 a.m.

2 stops30h 28m

C$ 403

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 25/5

7:25 p.m.-1:08 p.m.

2 stops20h 43m

Seattle/Tacoma Intl

Tue 2/6

7:05 a.m.-6:25 p.m.

2 stops32h 20m

C$ 403

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

4:15 p.m.-2:19 p.m.

1 stop25h 04m

Seattle/Tacoma Intl

Tue 17/3

3:10 p.m.-12:38 a.m.

2 stops30h 28m

C$ 422

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 6/2

7:30 a.m.-2:40 p.m.

1 stop10h 10m

Portland

Sun 15/2

7:05 p.m.-11:23 a.m.

2 stops13h 18m

C$ 429

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

2:40 p.m.-8:30 p.m.

1 stop8h 50m

Portland

Mon 23/2

9:45 p.m.-11:25 a.m.

1 stop10h 40m

C$ 459

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

6:00 a.m.-5:32 p.m.

2 stops14h 32m

Portland

Sat 18/4

10:55 p.m.-11:41 a.m.

1 stop9h 46m

C$ 459

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/1

Showing 1-10 of 49 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$ 271). Flying from Montreal to State of Washington in January is currently the most expensive (average of C$ 501). 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?

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 25 January 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
9,200 reviews
Check prices

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

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
9,200 reviews
United Airlines
7.4
Good
9,200 reviews
Check prices

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

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
3,249 reviews
United Airlines
7.4
Good
9,200 reviews
Check prices

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

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
10,655 reviews
United Airlines
7.4
Good
9,200 reviews
Check prices

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

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 8h 50m. 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$ 214 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 Delta, with prices starting from C$ 260 and C$ 281, 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$ 626. On average you can expect to pay C$ 698. The most popular route, (Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl), can usually be booked for C$ 438.

  • 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$ 271). Flying from Montreal to State of Washington in January is currently the most expensive (average of C$ 501). 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 25 January 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 256AverageC$ 537FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 278AverageC$ 612FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 354AverageC$ 525FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 492AverageC$ 680FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 513AverageC$ 714FlexibilityNo 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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