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Cheap flights from Montreal to Washington from C$ 216

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
24 Jun — 1 Jul1
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 May 2026.

Thu 9/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Tue 14/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 20/5C$ 373
Thu 9/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 13/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 21/5C$ 377
Fri 28/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 7/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 21/5C$ 395
Sat 12/97:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Fri 18/92:30 p.m.
PDX
-
YUL
2 stops23h 15m
WestJet
Deal found 20/5C$ 402
Wed 5/87:15 a.m.
YUL
-
SEA
1 stop29h 25m
WestJet
Mon 10/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 20/5C$ 403
Tue 7/78:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Mon 13/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 21/5C$ 406
Thu 20/86:45 a.m.
YUL
-
SEA
2 stops17h 15m
WestJet
Fri 28/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 20/5C$ 413
Wed 8/75:30 p.m.
YUL
-
SEA
1 stop19h 10m
WestJet
Wed 22/710:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 20/5C$ 414
Sat 4/78:00 p.m.
YUL
-
SEA
1 stop25h 45m
WestJet
Sat 11/710:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 20/5C$ 417
Thu 9/77:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Sun 12/72:30 p.m.
PDX
-
YUL
2 stops23h 15m
WestJet
Deal found 20/5C$ 424
Thu 24/95:30 p.m.
YUL
-
PDX
1 stop23h 20m
WestJet
Mon 28/92:30 p.m.
PDX
-
YUL
1 stop30h 15m
WestJet
Deal found 22/5C$ 449
Fri 26/66:35 p.m.
YUL
-
PDX
1 stop9h 15m
United Airlines
Fri 3/711:40 p.m.
PDX
-
YUL
1 stop8h 00m
United Airlines
Deal found 24/5C$ 460

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 May 2026.

Round-trip from

C$ 373

One-way from

C$ 216

Popular in

April

Cheapest in

March

Average price

C$ 674
WestJet
  • WestJet
  • 9/7-14/7
  • 3 total stops
  • 23h 30m total
  • Montreal to Washington
Search Deals
WestJet
  • WestJet
  • 5/9
  • 1 total stop
  • 9h 35m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 143 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 25 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

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 26/6

6:35 p.m.-12:50 a.m.

1 stop9h 15m

Portland

Fri 3/7

11:40 p.m.-10:40 a.m.

1 stop8h 00m

C$ 460

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

9:45 a.m.-10:52 p.m.

1 stop16h 07m

Portland

Sun 20/9

11:17 p.m.-1:09 p.m.

1 stop10h 52m

C$ 467

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

9:45 a.m.-10:52 p.m.

1 stop16h 07m

Portland

Sun 20/9

11:17 p.m.-4:10 p.m.

1 stop13h 53m

C$ 467

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

9:45 a.m.-10:23 p.m.

1 stop15h 38m

Portland

Sat 17/10

7:15 p.m.-8:16 a.m.

1 stop10h 01m

C$ 467

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:35 p.m.-12:34 a.m.

1 stop8h 59m

Portland

Fri 18/9

7:07 p.m.-1:09 p.m.

2 stops15h 02m

C$ 467

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

12:45 p.m.-10:26 p.m.

1 stop12h 41m

Portland

Sat 17/10

10:55 p.m.-12:15 p.m.

1 stop10h 20m

C$ 496

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

12:40 p.m.-9:46 p.m.

1 stop12h 06m

Portland

Thu 11/6

11:40 a.m.-11:55 p.m.

1 stop9h 15m

C$ 554

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

4:30 p.m.-11:13 p.m.

1 stop9h 43m

Portland

Tue 4/8

10:40 p.m.-10:40 a.m.

1 stop9h 00m

C$ 564

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

7:00 a.m.-4:35 p.m.

2 stops12h 35m

Seattle/Tacoma Intl

Sat 26/9

9:30 a.m.-11:44 p.m.

2 stops11h 14m

C$ 665

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

6:00 a.m.-4:55 p.m.

2 stops13h 55m

Seattle/Tacoma Intl

Sun 4/10

1:45 p.m.-11:34 p.m.

1 stop6h 49m

C$ 669

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/5

Showing 1-10 of 59 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

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$ 229). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 445). 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?

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 75 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 25 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
9,749 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,749 reviews
United Airlines
7.4
Good
9,749 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
WestJet
7.2
Good
3,345 reviews
United Airlines
7.4
Good
9,749 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Air Canada
7.1
Good
11,083 reviews
United Airlines
7.4
Good
9,749 reviews
Check prices

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 15m. 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 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$ 229). Flying from Montreal to State of Washington in February is currently the most expensive (average of C$ 445). 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 25 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 281AverageC$ 666FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 409AverageC$ 525FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 497AverageC$ 730FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 526AverageC$ 692FlexibilityNo 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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