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Cheap flights from Montreal to Washington from C$ 202

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
31 May — 7 Jun1
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 1 May 2026.

Wed 5/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 10/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 30/4C$ 346
Sat 8/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Sat 22/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 25/4C$ 349
Tue 7/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Tue 14/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 26/4C$ 351
Thu 16/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Sat 25/710:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 27/4C$ 357
Tue 14/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 20/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 27/4C$ 359
Wed 5/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Wed 12/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 30/4C$ 360
Thu 20/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Fri 28/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 29/4C$ 361
Sat 29/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 7/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 28/4C$ 367
Thu 20/87:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Tue 25/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Deal found 29/4C$ 367
Wed 22/77:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Tue 4/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Deal found 28/4C$ 368
Tue 25/87:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Mon 31/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Deal found 27/4C$ 370
Wed 15/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Wed 22/710:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 27/4C$ 371

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 1 May 2026.

Round-trip from

C$ 346

One-way from

C$ 202

Popular in

April

Cheapest in

March

Average price

C$ 622
WestJet
  • WestJet
  • 5/8-10/8
  • 3 total stops
  • 23h 30m total
  • Montreal to Washington
Search Deals
WestJet
  • WestJet
  • 25/8
  • 1 total stop
  • 9h 35m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 1 May 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

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

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

2 stops15h 00m

Seattle/Tacoma Intl

Mon 10/8

7:35 p.m.-7:05 a.m.

1 stop8h 30m

C$ 346

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

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

2 stops15h 00m

Seattle/Tacoma Intl

Tue 4/8

7:35 p.m.-4:45 p.m.

2 stops18h 10m

C$ 390

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

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

2 stops28h 00m

Seattle/Tacoma Intl

Tue 30/6

7:35 p.m.-7:05 a.m.

1 stop8h 30m

C$ 419

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

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

1 stop28h 15m

Seattle/Tacoma Intl

Tue 28/7

7:35 p.m.-4:45 p.m.

2 stops18h 10m

C$ 427

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

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

1 stop28h 15m

Seattle/Tacoma Intl

Mon 27/7

7:00 a.m.-11:45 p.m.

1 stop13h 45m

C$ 437

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 15/5

6:00 a.m.-5:11 p.m.

2 stops14h 11m

Portland

Sun 24/5

9:50 a.m.-11:41 p.m.

2 stops10h 51m

C$ 438

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

12:49 p.m.-10:02 p.m.

1 stop12h 13m

Portland

Wed 10/6

7:20 a.m.-11:42 p.m.

2 stops13h 22m

C$ 438

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 8/8

6:00 a.m.-8:15 p.m.

2 stops17h 15m

Portland

Thu 13/8

6:15 a.m.-11:10 p.m.

2 stops13h 55m

C$ 438

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

12:49 p.m.-10:02 p.m.

1 stop12h 13m

Portland

Sat 30/5

9:39 p.m.-4:15 p.m.

2 stops15h 36m

C$ 438

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 19/5

7:10 a.m.-6:01 p.m.

2 stops13h 51m

Portland

Mon 25/5

6:00 a.m.-11:13 p.m.

2 stops14h 13m

C$ 447

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 57 resultsSorted by cheapest first
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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

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 34 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 State of Washington?

Currently, June is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 226). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 439). 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 1 May 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
9,677 reviews
Check prices

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,677 reviews
United Airlines
7.4
Good
9,677 reviews
Check prices

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
WestJet
7.2
Good
3,328 reviews
United Airlines
7.4
Good
9,677 reviews
Check prices

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Air Canada
7.1
Good
10,982 reviews
United Airlines
7.4
Good
9,677 reviews
Check prices

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 14h 08m. 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, June is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 226). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 439). 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

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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 4 airlines flying from Montreal to Washington

Discover the top 4 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 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 277AverageC$ 657FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 409AverageC$ 519FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 460AverageC$ 711FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 502AverageC$ 677FlexibilityNo 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!

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