Cheap flights from Montreal to Washington from C$ 351
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
12 Dec — 19 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheap flight deals from Montreal to Washington
Enter your travel dates to find the best prices.
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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 12 November 2026.
Thu 3/121:05 p.m. -
2 stops11h 52m
Wed 9/123:15 p.m. -
2 stops12h 55m
Deal found 9/11C$ 610
Thu 10/126:00 a.m. -
1 stop12h 03m
Wed 16/126:00 a.m. -
1 stop6h 59m
Deal found 8/11C$ 621
Fri 11/1212:08 p.m. -
1 stop11h 23m
Mon 14/1211:39 p.m. -
2 stops9h 45m
Deal found 9/11C$ 641
Sun 6/126:00 a.m. -
1 stop12h 03m
Fri 11/1210:40 p.m. -
1 stop12h 07m
Deal found 9/11C$ 643
Thu 10/127:30 a.m. -
1 stop10h 07m
Wed 16/123:15 p.m. -
2 stops12h 55m
Deal found 9/11C$ 654
Sun 22/117:30 a.m. -
1 stop10h 07m
Tue 24/1110:10 a.m. -
2 stops10h 24m
Deal found 8/11C$ 656
Mon 23/117:00 a.m. -
2 stops14h 33m
Thu 26/118:09 a.m. -
1 stop8h 39m
Deal found 9/11C$ 664
Sun 22/117:30 a.m. -
1 stop10h 07m
Sun 22/117:05 p.m. -
2 stops12h 20m
Deal found 8/11C$ 667
Fri 4/126:00 a.m. -
2 stops13h 57m
Tue 8/121:55 p.m. -
1 stop6h 46m
Deal found 7/11C$ 767
Wed 2/127:10 a.m. -
2 stops12h 47m
Sun 6/127:00 a.m. -
2 stops13h 33m
Deal found 10/11C$ 768
Fri 13/114:45 p.m. -
2 stops20h 53m
Sun 15/115:00 a.m. -
2 stops13h 17m
Deal found 9/11C$ 1,049
Best flights from Montreal to Washington
Discover carefully curated flight deals from Montreal to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.
Fri 8/16:00 a.m. -
1 stop11h 40m
Sat 16/112:00 p.m. -
1 stop8h 44m
Deal found 12/11C$ 619
Fri 4/124:45 p.m. -
1 stop8h 30m
Tue 8/127:00 a.m. -
1 stop11h 17m
Deal found 7/11C$ 767
Thu 7/14:50 p.m. -
1 stop8h 12m
Wed 13/16:00 a.m. -
1 stop8h 35m
Deal found 12/11C$ 619
Fri 12/212:43 p.m. -
1 stop13h 57m
Sun 14/21:45 p.m. -
1 stop6h 43m
Deal found 12/11C$ 619
Wed 27/112:43 p.m. -
1 stop13h 42m
Fri 29/16:00 a.m. -
1 stop8h 35m
Deal found 9/11C$ 621
Thu 7/16:00 a.m. -
2 stops18h 06m
Wed 13/11:47 p.m. -
2 stops21h 13m
Deal found 10/11C$ 768
Thu 28/17:00 a.m. -
1 stop10h 39m
Sun 31/112:00 p.m. -
1 stop8h 44m
Deal found 9/11C$ 621
Thu 25/24:45 p.m. -
1 stop9h 58m
Wed 3/35:05 a.m. -
2 stops13h 37m
Deal found 9/11C$ 768
Fri 5/27:05 a.m. -
1 stop12h 41m
Sun 7/212:00 p.m. -
1 stop8h 44m
Deal found 8/11C$ 621
Thu 25/24:45 p.m. -
2 stops23h 07m
Tue 2/312:22 p.m. -
2 stops22h 06m
Deal found 9/11C$ 773
Thu 10/126:00 a.m. -
1 stop12h 03m
Wed 16/126:00 a.m. -
1 stop6h 59m
Deal found 8/11C$ 621
Tue 5/19:15 a.m. -
2 stops14h 51m
Tue 12/17:05 a.m. -
1 stop11h 12m
Deal found 8/11C$ 773
Thu 21/112:43 p.m. -
1 stop13h 42m
Thu 28/112:00 p.m. -
1 stop8h 44m
Deal found 11/11C$ 621
Mon 18/17:05 a.m. -
1 stop12h 41m
Thu 21/112:00 p.m. -
1 stop8h 44m
Deal found 11/11C$ 621
Fri 11/124:49 p.m. -
1 stop8h 14m
Sun 13/1211:59 p.m. -
1 stop8h 37m
Deal found 10/11C$ 623
Thu 4/26:00 p.m. -
1 stop20h 26m
Mon 8/21:52 p.m. -
2 stops17h 25m
Deal found 7/11C$ 1,028
Sat 17/47:00 a.m. -
2 stops19h 42m
Tue 20/47:00 a.m. -
2 stops13h 51m
Deal found 11/11C$ 736
Wed 20/17:05 a.m. -
1 stop7h 59m
Wed 27/11:00 p.m. -
1 stop7h 44m
Deal found 8/11C$ 740
Fri 4/126:00 a.m. -
2 stops11h 46m
Tue 8/125:00 a.m. -
2 stops15h 33m
Deal found 7/11C$ 767
Wed 2/127:10 a.m. -
1 stop8h 03m
Sun 6/129:33 a.m. -
2 stops11h 00m
Deal found 10/11C$ 768
Sat 9/17:05 a.m. -
1 stop12h 53m
Tue 12/16:00 a.m. -
2 stops14h 44m
Deal found 11/11C$ 835
Thu 4/27:05 a.m. -
2 stops13h 01m
Mon 8/25:10 a.m. -
2 stops15h 34m
Deal found 7/11C$ 882
Last-minute flights from Montreal to Washington
Discover last-minute flight deals from Montreal to Washington. Data last updated 12 November 2026 and is based on user searches.
Fri 13/114:45 p.m. -
2 stops20h 53m
Sun 15/115:00 a.m. -
2 stops13h 17m
Deal found 9/11C$ 1,049
Sun 22/117:30 a.m. -
1 stop10h 07m
Mon 23/1110:10 a.m. -
1 stop7h 20m
Deal found 8/11C$ 656
Sun 22/1110:40 a.m. -
2 stops13h 19m
Thu 26/113:15 p.m. -
2 stops12h 55m
Deal found 8/11C$ 667
Mon 23/117:00 a.m. -
1 stop17h 39m
Thu 26/118:09 a.m. -
1 stop8h 39m
Deal found 9/11C$ 664
Wed 2/127:10 a.m. -
2 stops12h 47m
Sun 6/127:00 a.m. -
2 stops13h 33m
Deal found 10/11C$ 768
Thu 3/121:05 p.m. -
2 stops11h 52m
Wed 9/123:15 p.m. -
2 stops12h 55m
Deal found 9/11C$ 610
Fri 4/126:00 a.m. -
2 stops13h 57m
Tue 8/121:55 p.m. -
1 stop6h 46m
Deal found 7/11C$ 767
Sun 6/126:00 a.m. -
1 stop12h 03m
Fri 11/1210:40 p.m. -
1 stop12h 07m
Deal found 9/11C$ 643
Thu 10/126:00 a.m. -
1 stop12h 03m
Wed 16/126:00 a.m. -
1 stop6h 59m
Deal found 8/11C$ 621
Thu 10/127:30 a.m. -
1 stop10h 07m
Wed 16/123:15 p.m. -
2 stops12h 55m
Deal found 9/11C$ 654
Fri 11/1212:08 p.m. -
1 stop11h 23m
Mon 14/1211:39 p.m. -
2 stops9h 45m
Deal found 9/11C$ 641
One-way flights from Montreal to Washington
Search for one-way flight options from Montreal to Washington. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.
Sun 13/126:00 a.m. -
1 stop8h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/11C$ 351
Fri 23/412:45 p.m. -
1 stop12h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/11C$ 352
Sat 12/126:00 a.m. -
1 stop8h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/11C$ 354
Fri 23/46:45 a.m. -
2 stops10h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/11C$ 361
Tue 15/127:33 a.m. -
2 stops11h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/11C$ 363
Fri 11/127:30 a.m. -
1 stop10h 07m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/11C$ 365
Tue 24/118:30 a.m. -
2 stops12h 52m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/11C$ 366
Sun 13/126:45 a.m. -
2 stops33h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/11C$ 371
Tue 26/11:00 p.m. -
2 stops14h 43m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/11C$ 372
Wed 25/112:13 p.m. -
2 stops12h 02m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/11C$ 373
Mon 30/116:00 a.m. -
1 stop11h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/11C$ 375
Thu 17/127:10 a.m. -
1 stop13h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/11C$ 381
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 12 November 2026.
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 7,457,451 searches. Data last updated 12 November 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 Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Tue 26/1
12:49 p.m.-10:02 p.m.
1 stop12h 13m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 351
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Fri 23/4
12:45 p.m.-10:05 p.m.
1 stop12h 20m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 351
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Sun 7/3
6:00 a.m.-2:23 p.m.
1 stop11h 23m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 351
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Sat 12/12
6:00 a.m.-3:03 p.m.
1 stop12h 03m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 352
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Mon 14/12
7:00 a.m.-2:38 p.m.
1 stop10h 38m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 354
Quickest round-trip
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Fri 11/12
7:30 a.m.-2:37 p.m.
1 stop10h 07m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 365
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Fri 11/12
6:00 a.m.-11:44 p.m.
2 stops20h 44m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 372
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Mon 23/11
7:00 a.m.-9:39 p.m.
1 stop17h 39m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 373
MontrealSeattle
YUL Montreal Pierre Elliott Trudeau Intl - SEA Seattle/Tacoma Intl
YULSEA
Montreal Pierre Elliott Trudeau Intl
Sat 12/12
6:00 a.m.-9:21 p.m.
2 stops18h 21m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 373
MontrealSpokane
YUL Montreal Pierre Elliott Trudeau Intl - GEG Spokane
YULGEG
Montreal Pierre Elliott Trudeau Intl
Fri 25/12
4:00 p.m.-12:19 a.m.
1 stop11h 19m
Spokane
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 446
Flights are sorted by cheapest round-trip flights first.
Deals found on 12/11
Showing 1-10 of 34 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.
YUL-SEA
YUL-GEG
YUL-PSC
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
YMQ-USWA
YUL-SEA
YUL-GEG
YUL-PSC
What is the cheapest month to book a flight from Montreal to State of Washington?
Currently, October is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 623). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 850). 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$ 671 and C$ 1,036 in December.The cheapest round-trip price found within the last 5 days was C$ 610 on Air Canada (3 Dec-9 Dec).
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 46 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 12 November 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.
I got middle seat, but it was cheap $340 for Taipei to PDX ,
Related info for your journey
Find useful and relevant information for your journey from Montreal to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Montreal to State of Washington?
Departing from Montreal to State of Washington will take you 8h 30m. Montreal and State of Washington are separated by a distance of 3310 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from Montreal to State of Washington?
When deciding which route to take from Montreal to State of Washington consider Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl, Montreal Pierre Elliott Trudeau Intl - Portland or Montreal Pierre Elliott Trudeau Intl - Spokane as they are the most popular.
What are the cheapest flights from Montreal to State of Washington?
The cheapest flight price from Montreal to State of Washington is C$ 684. On average you can expect to pay C$ 735. The most popular route, (Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl), can usually be booked for C$ 619.
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, October is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 623). Flying from Montreal to State of Washington in June is currently the most expensive (average of C$ 850). 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.
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 7,457,451 searches. Data last updated 12 November 2026.
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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