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Cheap flights from Montreal to Washington from C$ 218

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
22 Dec — 29 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Washington

Keep the following information in mind while searching for Montreal to Washington flight deals. Data was last updated 22 November 2025.

Round-trip from

C$ 285

One-way from

C$ 218

Popular in

November

Cheapest in

September

Average price

C$ 998

Good round-trip deal

C$ 1,332 or less
WestJet
  • WestJet
  • 8/5-16/5
  • 2 total stops
  • 17h 00m total
  • Montreal to Washington
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WestJet
  • WestJet
  • 13/1
  • 1 total stop
  • 21h 50m total
  • Montreal to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Washington.
Search Deals

Find 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 22 November 2025.

Thu 4/121:25 p.m.YUL - SEA
1 stop8h 51mAir Canada
Fri 5/1210:05 a.m.SEA - YUL
1 stop7h 55mAir Canada
Deal found 20/11C$ 393
Thu 11/1212:40 p.m.YUL - SEA
1 stop14h 18mDelta
Mon 15/1211:15 p.m.SEA - YUL
1 stop9h 45mDelta
Deal found 20/11C$ 414
Tue 9/129:15 a.m.YUL - SEA
2 stops15h 31mUnited Airlines
Tue 16/125:00 a.m.SEA - YUL
2 stops13h 42mUnited Airlines
Deal found 20/11C$ 417
Thu 4/126:00 a.m.YUL - SEA
2 stops15h 32mUnited Airlines
Tue 9/125:00 a.m.SEA - YUL
2 stops13h 42mUnited Airlines
Deal found 19/11C$ 419
Thu 11/126:00 a.m.YUL - PDX
2 stops14h 43mDelta
Wed 17/126:15 a.m.PDX - YUL
2 stops14h 17mDelta
Deal found 20/11C$ 464
Thu 11/126:00 a.m.YUL - SEA
2 stops15h 32mUnited Airlines
Sat 10/13:30 p.m.SEA - YUL
2 stops19h 30mUnited Airlines
Deal found 20/11C$ 482
Thu 11/127:30 a.m.YUL - SEA
1 stop10h 01mAir Canada
Sat 10/18:10 a.m.SEA - YUL
1 stop8h 12mAir Canada
Deal found 20/11C$ 483
Wed 17/1212:40 p.m.YUL - PDX
1 stop12h 39mDelta
Wed 24/126:15 a.m.PDX - YUL
2 stops14h 44mDelta
Deal found 19/11C$ 495
Thu 11/129:25 a.m.YUL - SEA
1 stop9h 42mUnited Airlines
Sun 14/125:11 p.m.SEA - YUL
2 stops20h 47mUnited Airlines
Deal found 20/11C$ 502
Sat 6/126:00 a.m.YUL - PDX
2 stops15h 50mDelta
Sat 13/121:59 p.m.PDX - YUL
1 stop6h 48mDelta
Deal found 20/11C$ 502
Thu 18/1210:10 a.m.YUL - SEA
1 stop15h 06mAir Canada
Thu 8/18:10 a.m.SEA - YUL
2 stops9h 39mAir Canada
Deal found 21/11C$ 520
Thu 11/122:29 p.m.YUL - SEA
1 stop9h 27mAmerican Airlines
Sat 13/1212:38 a.m.SEA - YUL
2 stops11h 46mAmerican Airlines
Deal found 20/11C$ 529

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 22 November 2025.
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

Tue 10/2

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

2 stops34h 34m

Seattle/Tacoma Intl

Tue 24/2

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

2 stops30h 28m

C$ 379

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

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

2 stops34h 34m

Seattle/Tacoma Intl

Mon 23/3

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

2 stops30h 28m

C$ 381

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

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

1 stop21h 49m

Seattle/Tacoma Intl

Fri 27/2

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

1 stop12h 55m

C$ 399

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 9/12

7:00 a.m.-6:49 p.m.

1 stop14h 49m

Seattle/Tacoma Intl

Tue 16/12

6:15 a.m.-10:40 p.m.

1 stop13h 25m

C$ 414

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

12:40 p.m.-11:58 p.m.

1 stop14h 18m

Seattle/Tacoma Intl

Mon 15/12

11:15 p.m.-12:00 p.m.

1 stop9h 45m

C$ 414

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 9/12

9:15 a.m.-9:46 p.m.

2 stops15h 31m

Seattle/Tacoma Intl

Tue 16/12

5:00 a.m.-9:42 p.m.

2 stops13h 42m

C$ 417

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

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

2 stops15h 32m

Seattle/Tacoma Intl

Mon 15/12

11:50 p.m.-1:28 p.m.

1 stop10h 38m

C$ 417

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

6:00 a.m.-4:07 p.m.

1 stop13h 07m

Seattle/Tacoma Intl

Tue 9/12

8:10 a.m.-7:48 p.m.

1 stop8h 38m

C$ 419

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

6:00 a.m.-9:46 p.m.

2 stops18h 46m

Seattle/Tacoma Intl

Fri 5/12

11:50 p.m.-1:28 p.m.

1 stop10h 38m

C$ 419

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

6:00 a.m.-5:43 p.m.

2 stops14h 43m

Portland

Wed 17/12

6:15 a.m.-11:32 p.m.

2 stops14h 17m

C$ 464

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/11

Showing 1-10 of 35 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, November is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 286). Flying from Montreal to State of Washington in December is currently the most expensive (average of C$ 688). 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.

What is the cheapest time of day to fly from YMQ to WA?

Find hourly flight availability from Montreal to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 November 2025.

One of the essential ways to save on airfare from Montreal to State of Washington is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 67% on airfare.

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 22 November 2025.
Check out reviews from past customers who have flown with United Airlines,American 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.
United Airlines
7.4
Good
9,033 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,033 reviews
United Airlines
7.4
Good
9,033 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,047 reviews
United Airlines
7.4
Good
9,033 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
WestJet
7.2
Good
3,170 reviews
United Airlines
7.4
Good
9,033 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,464 reviews
United Airlines
7.4
Good
9,033 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 18m. Montreal and State of Washington are separated by a distance of 3663 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$ 233 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$ 234 and C$ 272, 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$ 1,065. On average you can expect to pay C$ 1,332. The most popular route, (Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl), can usually be booked for C$ 407.

  • 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, November is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 286). Flying from Montreal to State of Washington in December is currently the most expensive (average of C$ 688). 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 22 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 287AverageC$ 579FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 375AverageC$ 563FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 465AverageC$ 571FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 511AverageC$ 709FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 546AverageC$ 743FlexibilityNo 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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