What is the cheapest airline that flies from Montreal to Washington?

WestJet, United Airlines, and Delta are the most popular carriers operating from Montreal to Washington

Which airlines fly to State of Washington?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to State of Washington from Montreal according to our data. Air Canada is the first choice among our users, with 69% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Montreal to Washington?

Prices for flights from Montreal to Washington are refreshed on a daily basis.

How many operators does momondo search for flights from Montreal to Washington?

There are 5 operators available for flights from Montreal to Washington as of May 2026.

How old do you have to be to fly from Montreal to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 201 Cheap Flights from Montreal to Washington in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montreal to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YUL

SEA

15h 00m

2 stops

7:35 p.m. - 7:05 a.m.

SEA

YUL

8h 30m

1 stop

C$ 345WestJet

Wed, 5 Aug - Mon, 10 Aug

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

YUL

SEA

15h 00m

2 stops

10:30 a.m. - 12:25 a.m.

SEA

YUL

10h 55m

2 stops

C$ 355WestJet

Wed, 5 Aug - Mon, 10 Aug

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

YUL

SEA

15h 00m

2 stops

7:35 p.m. - 7:05 a.m.

SEA

YUL

8h 30m

1 stop

C$ 359WestJet

Wed, 5 Aug - Wed, 12 Aug

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

YUL

SEA

15h 00m

2 stops

7:35 p.m. - 7:05 a.m.

SEA

YUL

8h 30m

1 stop

C$ 360WestJet

Thu, 20 Aug - Fri, 28 Aug

9:30 a.m. - 11:06 p.m.

YUL

GEG

16h 36m

2 stops

10:48 p.m. - 6:54 p.m.

GEG

YUL

17h 06m

2 stops

C$ 663Delta

Fri, 29 May - Mon, 8 Jun

7:10 a.m. - 1:11 p.m.

YUL

GEG

9h 01m

1 stop

6:49 a.m. - 8:39 a.m.

GEG

YUL

22h 50m

2 stops

C$ 669Delta

Fri, 22 May - Sun, 24 May

2:29 p.m. - 11:17 a.m.

YUL

GEG

23h 48m

2 stops

2:16 p.m. - 11:41 p.m.

GEG

YUL

6h 25m

1 stop

C$ 675Delta

Thu, 28 May - Sat, 30 May

9:45 a.m. - 8:53 p.m.

YUL

PSC

14h 08m

2 stops

2:00 p.m. - 10:40 a.m.

PSC

YUL

17h 40m

2 stops

C$ 843United Airlines

Thu, 27 Aug - Mon, 31 Aug

9:15 a.m. - 8:53 p.m.

YUL

PSC

14h 38m

2 stops

2:00 p.m. - 10:40 a.m.

PSC

YUL

17h 40m

2 stops

C$ 877United Airlines

Thu, 27 Aug - Mon, 31 Aug

2:20 p.m. - 12:15 p.m.

YUL

PSC

24h 55m

2 stops

12:54 p.m. - 10:40 a.m.

PSC

YUL

18h 46m

2 stops

C$ 904United Airlines

Wed, 30 Sep - Sun, 4 Oct

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WestJet flights from Montreal to State of Washington

Our best WestJet deals on Montreal to State of Washington flight tickets

WestJet

5 Aug

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

15h 00m

2 stops

SEA6:45 p.m.Seattle/Tacoma Intl

10 Aug

SEA7:35 p.m.Seattle/Tacoma Intl

8h 30m

1 stop

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 345

WestJet

5 Aug

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

15h 00m

2 stops

SEA6:45 p.m.Seattle/Tacoma Intl

10 Aug

SEA10:30 a.m.Seattle/Tacoma Intl

10h 55m

2 stops

YUL12:25 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 355

WestJet

5 Aug

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

15h 00m

2 stops

SEA6:45 p.m.Seattle/Tacoma Intl

12 Aug

SEA7:35 p.m.Seattle/Tacoma Intl

8h 30m

1 stop

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 359

Air Canada flights from Montreal to State of Washington

Our best Air Canada deals on Montreal to State of Washington flight tickets

Air Canada

16 May

YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl

12h 20m

2 stops

SEA6:30 p.m.Seattle/Tacoma Intl

22 Aug

SEA3:00 p.m.Seattle/Tacoma Intl

13h 10m

2 stops

YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 699

Air Canada

16 May

YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl

12h 20m

2 stops

SEA6:30 p.m.Seattle/Tacoma Intl

22 Aug

SEA3:00 p.m.Seattle/Tacoma Intl

13h 10m

2 stops

YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 700

Air Canada

16 May

YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl

16h 30m

2 stops

SEA10:40 p.m.Seattle/Tacoma Intl

22 Aug

SEA5:45 a.m.Seattle/Tacoma Intl

11h 04m

2 stops

YUL7:49 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 711

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

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

2 stops15h 00m

Seattle/Tacoma Intl

Mon 10/8

7:35 p.m.-7:05 a.m.

1 stop8h 30m

C$ 345

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

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

2 stops15h 00m

Seattle/Tacoma Intl

Mon 10/8

10:30 a.m.-12:25 a.m.

2 stops10h 55m

C$ 355

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 5/8

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

2 stops15h 00m

Seattle/Tacoma Intl

Wed 12/8

7:35 p.m.-7:05 a.m.

1 stop8h 30m

C$ 359

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

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

2 stops15h 00m

Seattle/Tacoma Intl

Fri 28/8

7:35 p.m.-7:05 a.m.

1 stop8h 30m

C$ 360

MontrealSpokane

YUL - GEG

YULGEG

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

9:30 a.m.-11:06 p.m.

2 stops16h 36m

Spokane

Mon 8/6

10:48 p.m.-6:54 p.m.

2 stops17h 06m

C$ 663

MontrealSpokane

YUL - GEG

YULGEG

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

7:10 a.m.-1:11 p.m.

1 stop9h 01m

Spokane

Sun 24/5

6:49 a.m.-8:39 a.m.

2 stops22h 50m

C$ 669

MontrealSpokane

YUL - GEG

YULGEG

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

2:29 p.m.-11:17 a.m.

2 stops23h 48m

Spokane

Sat 30/5

2:16 p.m.-11:41 p.m.

1 stop6h 25m

C$ 675

MontrealPasco

YUL - PSC

YULPSC

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

9:45 a.m.-8:53 p.m.

2 stops14h 08m

Pasco Tri Cities

Mon 31/8

2:00 p.m.-10:40 a.m.

2 stops17h 40m

C$ 843

MontrealPasco

YUL - PSC

YULPSC

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

9:15 a.m.-8:53 p.m.

2 stops14h 38m

Pasco Tri Cities

Mon 31/8

2:00 p.m.-10:40 a.m.

2 stops17h 40m

C$ 877

MontrealPasco

YUL - PSC

YULPSC

Montreal Pierre Elliott Trudeau Intl

Wed 30/9

2:20 p.m.-12:15 p.m.

2 stops24h 55m

Pasco Tri Cities

Sun 4/10

12:54 p.m.-10:40 a.m.

2 stops18h 46m

C$ 904

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montreal to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

In general, June is the cheapest month to fly from Montreal to State of Washington. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 226. If you’re not able to fly to State of Washington in June, then April is your next best option. Flight prices from Montreal to State of Washington during April average around C$ 254.

What is the cheapest day to depart on your flight to State of Washington?

On average, the least expensive day to fly to State of Washington from Montreal is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as C$ 603. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Thursday is C$ 790.

What is the cheapest Montreal to Washington flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl for the best Montreal - Washington flight prices

How far in advance should I book a flight from Montreal to Washington?

You are more likely to see cheaper flights to State of Washington from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around C$ 657 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Montreal for as low as C$ 565 on momondo.

Can stopping save me money on Montreal to State of Washington flights?

You could potentially save up to 27% on your flight if you consider stops on a Montreal to State of Washington flight.

Cheap Montreal to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to State of Washington

Fastest flight time	8h 51m
Direct flights	None

The fastest flight from Montreal to State of Washington takes 8h 51m

There are no direct flights from Montreal to State of Washington. There are no popular flight routes from Montreal to State of Washington.

Search flight deals

Frequently asked questions about flying from Montreal to Washington

When did momondo last update prices for flights from Montreal to Washington?
Prices for flights from Montreal to Washington are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal to Washington?
There are 5 operators available for flights from Montreal to Washington as of May 2026.
How old do you have to be to fly from Montreal to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Montreal to State of Washington?
Based on momondo bookings for flights between Montreal and State of Washington, the leading plane model is Airbus A220-300, making up 81.82% of the total bookings. Other popular models include Boeing 737 MAX 8 with 9.09% and Boeing 737 MAX 9 with 9.09%.

Best airlines flying from Montreal to State of Washington

Compare and see reviews for airlines that fly from Montreal to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 276	Free Cancellation	Rating 7.9 8,460 reviews	Search Delta flights
WestJet	PriceFrom C$ 406	Free Cancellation	Rating 7.2 3,331 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 458	Free Cancellation	Rating 7.4 9,681 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 517	Free Cancellation	Rating 7.1 10,993 reviews	Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Washington?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montreal to Washington. momondo saves you time and could save you money on your trip.

Can I find flights from Montreal to Washington with flexible booking policies on momondo?

Yes. All flights to Washington from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Montreal to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Montreal.

I’m not ready to book a flight from Montreal to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from Montreal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.