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Cheap flights from Montreal to Washington from C$ 211

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
3 Sep — 10 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 4 August 2026.

Sat 29/87:15 a.m. -
1 stop9h 35m
Sat 12/92:30 p.m. -
2 stops30h 55m
Deal found 31/7C$ 389
Wed 4/117:30 a.m. -
1 stop10h 11m
Wed 11/117:00 a.m. -
1 stop9h 35m
Deal found 1/8C$ 392
Sat 5/97:15 a.m. -
1 stop9h 35m
Sat 12/92:30 p.m. -
1 stop13h 35m
Deal found 2/8C$ 394
Tue 1/97:15 a.m. -
1 stop9h 35m
Thu 10/92:30 p.m. -
1 stop13h 35m
Deal found 31/7C$ 396
Sat 22/89:15 a.m. -
1 stop13h 55m
Sat 29/82:27 p.m. -
1 stop17h 13m
Deal found 3/8C$ 403
Sat 7/117:30 a.m. -
1 stop10h 11m
Tue 10/1110:00 a.m. -
2 stops10h 18m
Deal found 30/7C$ 413
Sat 22/86:00 a.m. -
1 stop19h 03m
Sat 5/911:18 p.m. -
1 stop10h 51m
Deal found 31/7C$ 414
Wed 4/119:15 a.m. -
2 stops16h 12m
Wed 11/117:00 a.m. -
1 stop9h 35m
Deal found 1/8C$ 416
Sat 26/96:45 a.m. -
2 stops15h 00m
Sat 3/107:35 p.m. -
1 stop8h 30m
Deal found 3/8C$ 449
Thu 10/96:45 a.m. -
2 stops15h 00m
Mon 21/97:35 p.m. -
1 stop8h 30m
Deal found 3/8C$ 452
Tue 15/96:45 a.m. -
2 stops15h 00m
Tue 22/97:35 p.m. -
1 stop8h 30m
Deal found 4/8C$ 463
Thu 3/96:45 a.m. -
2 stops15h 00m
Thu 10/97:35 p.m. -
1 stop8h 30m
Deal found 3/8C$ 465

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 4 August 2026.

Round-trip from

C$ 389

One-way from

C$ 211

Popular in

April

Cheapest in

September

Average price

C$ 646
WestJet
  • WestJet
  • 29/8-12/9
  • 3 total stops
  • 40h 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. 13% potential increase in price (C$ 163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 76 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 4 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 - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

2:20 p.m.-8:10 p.m.

1 stop8h 50m

Portland

Tue 8/9

11:02 p.m.-10:40 a.m.

1 stop8h 38m

C$ 414

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

6:00 a.m.-10:03 p.m.

1 stop19h 03m

Portland

Sat 5/9

11:18 p.m.-1:09 p.m.

1 stop10h 51m

C$ 414
Quickest round-trip

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

6:10 a.m.-11:28 a.m.

1 stop8h 18m

Portland

Sat 5/9

11:02 p.m.-10:40 a.m.

1 stop8h 38m

C$ 421

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

6:00 a.m.-4:10 p.m.

2 stops13h 10m

Portland

Tue 10/11

11:10 p.m.-3:58 p.m.

2 stops13h 48m

C$ 428

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

11:23 a.m.-9:05 p.m.

2 stops12h 42m

Portland

Wed 9/9

5:00 a.m.-10:06 p.m.

2 stops14h 06m

C$ 430

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 2/10

7:30 a.m.-2:51 p.m.

1 stop10h 21m

Portland

Sat 17/10

3:30 p.m.-7:10 a.m.

2 stops12h 40m

C$ 431

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 3/10

9:15 a.m.-8:10 p.m.

1 stop13h 55m

Portland

Fri 9/10

10:33 p.m.-4:10 p.m.

1 stop14h 37m

C$ 432

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:35 p.m.-10:11 a.m.

1 stop18h 36m

Portland

Sat 19/9

7:02 a.m.-5:30 p.m.

1 stop7h 28m

C$ 434

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 3/10

6:00 a.m.-5:10 p.m.

2 stops14h 10m

Portland

Fri 9/10

11:00 p.m.-4:15 p.m.

2 stops14h 15m

C$ 442

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

9:45 a.m.-6:52 p.m.

1 stop12h 07m

Seattle/Tacoma Intl

Sat 3/10

11:14 p.m.-2:40 p.m.

1 stop12h 26m

C$ 508

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 54 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 639). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 848). 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$ 580 and C$ 868 in September.
The cheapest round-trip price found within the last 5 days was C$ 449 on WestJet (26 Sep-3 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 45 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 4 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
8,482 reviews
Check prices

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.8

Boarding

8.1

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
8,482 reviews
Delta
7.8
Good
8,482 reviews
Check prices

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.8

Boarding

8.1

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
10,060 reviews
Delta
7.8
Good
8,482 reviews
Check prices

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.8

Boarding

8.1

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
3,426 reviews
Delta
7.8
Good
8,482 reviews
Check prices

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.8

Boarding

8.1

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
11,424 reviews
Delta
7.8
Good
8,482 reviews
Check prices

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Overall

7.8

Boarding

8.1

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 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 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$ 639). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 848). 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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 285AverageC$ 748FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 415AverageC$ 533FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 426AverageC$ 633FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 505AverageC$ 875FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 544AverageC$ 740FlexibilityNo 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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