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Cheap flights from Montreal to Washington from C$ 238
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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SEA
23 Aug — 30 Aug1
Round-trip
1 adult
Economy
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 18 August 2025.
Find flight deals from Montreal to Washington
Cheapest flights from Montreal to WashingtonExplore 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 18 August 2025.
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 18 August 2025.
Thu 11/94:55 p.m.YUL - PDX
2 stops9h 06mAir Canada
Wed 17/93:25 p.m.PDX - YUL
2 stops12h 45mAir Canada
Deal found 17/8C$ 399
Thu 11/96:15 a.m.YUL - PDX
1 stop8h 34mUnited Airlines
Wed 17/95:40 p.m.PDX - YUL
1 stop11h 36mUnited Airlines
Deal found 17/8C$ 428
Tue 2/96:00 a.m.YUL - PDX
2 stops13h 59mDelta
Tue 9/911:50 a.m.PDX - YUL
1 stop8h 18mDelta
Deal found 17/8C$ 464
Wed 5/117:30 a.m.YUL - PDX
1 stop10h 15mAir Canada
Sun 9/119:50 a.m.PDX - YUL
1 stop8h 10mAir Canada
Deal found 17/8C$ 466
Wed 15/106:45 a.m.YUL - PDX
2 stops15h 51mMultiple Airlines
Tue 21/1011:07 a.m.PDX - YUL
1 stop26h 05mMultiple Airlines
Deal found 17/8C$ 471
Tue 2/97:50 a.m.YUL - PDX
1 stop17h 14mAmerican Airlines
Tue 9/99:56 p.m.PDX - YUL
1 stop12h 44mAmerican Airlines
Deal found 17/8C$ 477
Tue 30/96:00 a.m.YUL - PDX
2 stops14h 10mDelta
Tue 7/106:20 a.m.PDX - YUL
2 stops13h 54mDelta
Deal found 16/8C$ 485
Wed 1/107:00 a.m.YUL - PDX
1 stop10h 44mMultiple Airlines
Wed 8/1011:07 a.m.PDX - YUL
2 stops10h 30mMultiple Airlines
Deal found 17/8C$ 496
Wed 1/107:00 a.m.YUL - SEA
1 stop10h 59mMultiple Airlines
Tue 14/102:05 p.m.SEA - YUL
1 stop7h 36mMultiple Airlines
Deal found 17/8C$ 529
Wed 24/97:00 a.m.YUL - SEA
1 stop10h 59mMultiple Airlines
Wed 8/101:50 p.m.SEA - YUL
1 stop7h 51mMultiple Airlines
Deal found 16/8C$ 531
Fri 26/98:10 a.m.YUL - SEA
1 stop9h 49mMultiple Airlines
Sun 12/102:05 p.m.SEA - YUL
1 stop7h 36mMultiple Airlines
Deal found 16/8C$ 532
Fri 26/94:45 p.m.YUL - SEA
Nonstop5h 46mAir Canada
Sat 4/107:15 a.m.SEA - YUL
Nonstop5h 13mAir Canada
Deal found 16/8C$ 533
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 18 August 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
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Thu 11/9
4:55 p.m.-11:01 p.m.
2 stops9h 06m
Portland
Wed 17/9
3:25 p.m.-7:10 a.m.
2 stops12h 45m
C$ 399
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Thu 11/9
6:15 a.m.-11:49 a.m.
1 stop8h 34m
Portland
Wed 17/9
5:40 p.m.-8:16 a.m.
1 stop11h 36m
C$ 428
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Tue 2/9
6:00 a.m.-4:59 p.m.
2 stops13h 59m
Portland
Tue 9/9
11:50 a.m.-11:08 p.m.
1 stop8h 18m
C$ 464
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Wed 5/11
7:30 a.m.-2:45 p.m.
1 stop10h 15m
Portland
Sun 9/11
9:50 a.m.-9:00 p.m.
1 stop8h 10m
C$ 466
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Wed 15/10
6:45 a.m.-7:36 p.m.
2 stops15h 51m
Portland
Tue 21/10
11:07 a.m.-4:12 p.m.
1 stop26h 05m
C$ 471
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Tue 2/9
7:50 a.m.-10:04 p.m.
1 stop17h 14m
Portland
Tue 9/9
9:56 p.m.-1:40 p.m.
1 stop12h 44m
C$ 477
MontrealPortland
YUL - PDX
YULPDX
Montreal Pierre Elliott Trudeau Intl
Tue 30/9
6:00 a.m.-10:19 a.m.
1 stop7h 19m
Portland
Tue 7/10
6:20 a.m.-11:14 p.m.
2 stops13h 54m
C$ 485
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Wed 1/10
7:00 a.m.-2:59 p.m.
1 stop10h 59m
Seattle/Tacoma Intl
Tue 14/10
2:05 p.m.-12:41 a.m.
1 stop7h 36m
C$ 529
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Tue 9/9
6:45 a.m.-12:59 p.m.
2 stops33h 14m
Seattle/Tacoma Intl
Wed 17/9
1:50 p.m.-12:27 a.m.
2 stops31h 37m
C$ 531
MontrealSeattle
YUL - SEA
YULSEA
Montreal Pierre Elliott Trudeau Intl
Mon 15/9
6:35 p.m.-10:20 a.m.
1 stop18h 45m
Seattle/Tacoma Intl
Mon 22/9
7:55 a.m.-2:09 p.m.
1 stop27h 14m
C$ 531
Showing 1-10 of 57 results
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, January is the cheapest month in which you can book a flight from Montreal to State of Washington (average of C$ 262). Flying from Montreal to State of Washington in December is currently the most expensive (average of C$ 353). 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 18 August 2025.
When flying from Montreal to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Montreal to State of Washington
Explore weekly flight availability from Montreal to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 August 2025.
The most flights from YMQ to USWA are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
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 18 August 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.
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Apr 2025
TPE - SFO
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Apr 2025
TPE - SFO
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Apr 2025
TPE - SFO
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Apr 2025
TPE - SFO
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Apr 2025
TPE - SFO
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.
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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.
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 18 August 2025.
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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.
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