How long is the flight from Seattle to Montreal?

There are many flights that can get you from Seattle to Montreal in 14h 37m. Fly via WestJet to get the fastest option. The distance from Seattle to Montreal is about 2276 mi.

What are the cheapest airlines flying from Seattle to Montreal round-trip?

Our cheapest airline available from Seattle to Montreal is United Airlines. Our recent data shows that you can find tickets from as low as $199 on this airline. Additional options worth looking into are Air Canada and WestJet, starting at $254 and $289 round-trip. United Airlines is priced at 67% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Seattle to Montreal one-way?

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $165. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Seattle to Montreal for a low price.

In terms of precipitation, rainfall in Montreal ranges from 2.5 - 4.4 inches per month. August is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Montreal when rainfall is around 2.5 in.

If weather is an important factor for your trip to Montreal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the cheapest flights from Seattle to Montreal?

Looking for the cheapest flight from Seattle to Montreal? While on average our users pay $1,583, our data indicates the cheapest price to be $274. The most popular route (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl), is priced around $310.

What are the most popular airlines that fly from Seattle to Montreal?

Before booking your flight from Seattle to Montreal check out the most popular airlines for this route: Air Canada, United Airlines or Delta.

Most accurate provider : When it comes to deals on Seattle-Montreal flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Montreal flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Montreal flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Montreal flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Seattle to Montreal?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Montreal. On average, Seattle/Tacoma Intl has 0 outbound flights to Montreal per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Can I find deals for flights from Seattle to Montreal that include hotel bookings?

Yes. In addition to deals on Seattle to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Montreal?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Montreal.

Can I find deals for business class flights from Seattle to Montreal?

Yes. Cheapflights offers flight deals from Seattle to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$115+ Flights from Seattle to Montreal

Q: How much does it cost to fly round-trip from Seattle to Montreal?

Airfare is below average for this route at the moment. Seattle to Montreal flights typically cost between $538 and $808 in April. The cheapest round-trip price found within the last 3 days was $249 on WestJet (Apr 16-Apr 27).

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal are usually found in September or August, booked 76 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Seattle to Montreal

Cheapest flights from Seattle to Montreal
Explore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Sat 12/272:54 pmSEA - YUL

2 stops30h 36mMultiple Airlines

Fri 1/95:55 pmYUL - SEA

1 stop27h 54mMultiple Airlines

Deal found 12/21

$784

Tue 12/237:25 amSEA - YUL

2 stops13h 34mDelta

Sat 1/106:00 amYUL - SEA

1 stop11h 21mDelta

Deal found 12/22

$815

Sat 12/2710:05 amSEA - YUL

1 stop7h 55mAir Canada

Fri 1/91:25 pmYUL - SEA

1 stop8h 51mAir Canada

Deal found 12/21

$869

Wed 12/241:25 pmSEA - YUL

2 stops32h 05mMultiple Airlines

Mon 1/55:10 pmYUL - SEA

1 stop20h 26mMultiple Airlines

Deal found 12/22

$880

Tue 12/235:50 amSEA - YUL

1 stop8h 10mAir Canada

Sat 1/101:25 pmYUL - SEA

1 stop8h 51mAir Canada

Deal found 12/21

$902

Wed 12/247:00 amSEA - YUL

1 stop8h 40mUnited Airlines

Mon 1/55:25 pmYUL - SEA

1 stop19h 29mUnited Airlines

Deal found 12/22

$916

Sun 12/289:25 amSEA - YUL

2 stops12h 18mWestJet

Sun 1/47:30 pmYUL - SEA

2 stops39h 05mWestJet

Deal found 12/21

$964

Sun 12/288:00 pmSEA - YUL

1 stop7h 44mAir Canada

Sun 1/47:30 amYUL - SEA

1 stop17h 36mAir Canada

Deal found 12/21

$1,030

Best flights from Seattle to Montreal
Discover carefully curated flight deals from Seattle to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Mon 5/47:05 amSEA - YUL

1 stop14h 37mWestJet

Sat 5/96:45 amYUL - SEA

1 stop9h 23mWestJet

Deal found 12/21

$249

Mon 1/193:10 pmSEA - YUL

1 stop12h 55mMultiple Airlines

Mon 1/262:25 pmYUL - SEA

2 stops10h 41mMultiple Airlines

Deal found 12/22

$339

Fri 4/33:10 pmSEA - YUL

1 stop12h 55mWestJet

Sun 4/57:30 pmYUL - SEA

1 stop21h 49mWestJet

Deal found 12/22

$288

Mon 2/23:10 pmSEA - YUL

1 stop12h 55mMultiple Airlines

Thu 2/56:45 amYUL - SEA

2 stops16h 25mMultiple Airlines

Deal found 12/22

$346

Thu 4/163:10 pmSEA - YUL

2 stops30h 28mWestJet

Mon 4/276:45 amYUL - SEA

1 stop9h 23mWestJet

Deal found 12/21

$340

Sun 2/111:05 pmSEA - YUL

1 stop14h 24mMultiple Airlines

Fri 2/66:45 amYUL - SEA

2 stops31h 54mMultiple Airlines

Deal found 12/22

$362

Thu 4/163:10 pmSEA - YUL

2 stops30h 28mWestJet

Tue 4/286:45 amYUL - SEA

1 stop9h 23mWestJet

Deal found 12/21

$340

Sun 2/111:05 pmSEA - YUL

1 stop14h 24mMultiple Airlines

Thu 2/56:45 amYUL - SEA

2 stops16h 25mMultiple Airlines

Deal found 12/22

$366

Mon 2/23:10 pmSEA - YUL

1 stop12h 55mWestJet

Fri 2/67:30 pmYUL - SEA

2 stops17h 55mWestJet

Deal found 12/22

$350

Wed 4/153:10 pmSEA - YUL

2 stops30h 28mWestJet

Sun 4/265:30 pmYUL - SEA

1 stop29h 58mWestJet

Deal found 12/21

$367

Last-minute flights from Seattle to Montreal
Discover last-minute flight deals from Seattle to Montreal. Data last updated December 23, 2025 and is based on user searches.

Mon 1/123:10 pmSEA - YUL

1 stop12h 55mWestJet

Wed 1/147:30 pmYUL - SEA

1 stop21h 50mWestJet

Deal found 12/20

$331

Wed 1/143:39 pmSEA - YUL

2 stops12h 26mMultiple Airlines

Tue 1/207:30 pmYUL - SEA

1 stop27h 22mMultiple Airlines

Deal found 12/21

$425

Mon 1/193:10 pmSEA - YUL

1 stop12h 55mMultiple Airlines

Mon 1/262:25 pmYUL - SEA

2 stops10h 41mMultiple Airlines

Deal found 12/22

$339

Mon 1/198:00 pmSEA - YUL

2 stops11h 22mAir Canada

Mon 1/262:25 pmYUL - SEA

2 stops10h 41mAir Canada

Deal found 12/22

$415

Tue 1/202:00 pmSEA - YUL

2 stops14h 05mMultiple Airlines

Tue 1/276:45 amYUL - SEA

1 stop15h 32mMultiple Airlines

Deal found 12/22

$380

Mon 1/263:10 pmSEA - YUL

1 stop12h 55mMultiple Airlines

Wed 2/46:45 amYUL - SEA

1 stop15h 32mMultiple Airlines

Deal found 12/22

$358

One-way flights from Seattle to Montreal
Search for one-way flight options from Seattle to Montreal. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Thu 2/59:25 pmSEA - YUL

3 stops24h 13mMultiple Airlines

Deal found 12/22

$115

Wed 2/43:10 pmSEA - YUL

1 stop12h 55mWestJet

Deal found 12/20

$122

Sat 5/27:05 amSEA - YUL

1 stop14h 37mWestJet

Deal found 12/21

$124

Sun 1/253:10 pmSEA - YUL

1 stop12h 55mWestJet

Deal found 12/22

$127

Wed 4/223:10 pmSEA - YUL

2 stops30h 28mWestJet

Deal found 12/20

$132

Sun 1/259:25 pmSEA - YUL

2 stops48h 18mMultiple Airlines

Deal found 12/22

$151

Wed 2/47:28 pmSEA - YUL

3 stops26h 10mMultiple Airlines

Deal found 12/20

$156

Find flight deals from Seattle to Montreal

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$249 (Kiwi.com)
One-way from	$115 (Kiwi.com)
Popular in	February
Cheapest in	September
Average price	$754
Good round-trip deal	$563 or less
Good one-way deal	$274 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-Montreal (YMQ) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Montreal (YMQ) flights.

Search Deals

From Seattle/Tacoma Intl to Montreal (YMQ)

Search Deals

One-way flight from Seattle/Tacoma Intl to Montreal (YMQ)

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($134 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Seattle/Tacoma Intl to Montreal (YMQ).

Search Deals

Price to beat on a one-way flight from Seattle/Tacoma Intl to Montreal (YMQ).

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 5/4

7:05 am-12:42 am

1 stop14h 37m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:45 am-1:08 pm

1 stop9h 23m

$249

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 4/3

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

7:30 pm-2:19 pm

1 stop21h 49m

$288

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 1/19

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 1/26

2:25 pm-10:06 pm

2 stops10h 41m

$339

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 4/16

3:10 pm-12:38 am

2 stops30h 28m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

6:45 am-1:08 pm

1 stop9h 23m

$340

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 4/16

3:10 pm-12:38 am

2 stops30h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

6:45 am-1:08 pm

1 stop9h 23m

$340

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 2/2

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

6:45 am-8:10 pm

2 stops16h 25m

$346

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 2/2

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 2/6

7:30 pm-10:25 am

2 stops17h 55m

$350

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 2/1

11:05 pm-4:29 pm

1 stop14h 24m

Montreal Pierre Elliott Trudeau Intl

Fri 2/6

6:45 am-11:39 am

2 stops31h 54m

$362

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 2/1

11:05 pm-4:29 pm

1 stop14h 24m

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

6:45 am-8:10 pm

2 stops16h 25m

$366

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 4/15

3:10 pm-12:38 am

2 stops30h 28m

Montreal Pierre Elliott Trudeau Intl

Sun 4/26

5:30 pm-8:28 pm

1 stop29h 58m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 16 results

Compare providers for flights from Seattle to Montreal

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Montreal in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Montreal flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Montreal flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Montreal flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Montreal flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Seattle 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 Seattle to Montreal

How far ahead should I book a flight from Seattle to Montreal?

The price you pay for your flight from Seattle to Montreal may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Montreal?

Currently, May is the cheapest month in which you can book a flight from Seattle to Montreal (average of $214). Flying from Seattle to Montreal in December is currently the most expensive (average of $563). 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 SEA to YMQ?

It’s typically best to fly out from Seattle to Montreal in the afternoon. Doing so could potentially save you 63% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Seattle to Montreal?

Reviews of airlines servicing Montreal

Get a feel of what it's like to fly with Delta, United Airlines, and WestJet from Seattle to Montreal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,014 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,106 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

WestJet

7.2

Good

3,216 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,551 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from Seattle to Montreal?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Montreal. On average, Seattle/Tacoma Intl has 0 outbound flights to Montreal per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
How long is the flight from Seattle to Montreal?
There are many flights that can get you from Seattle to Montreal in 14h 37m. Fly via WestJet to get the fastest option. The distance from Seattle to Montreal is about 2276 mi.
What are the cheapest airlines flying from Seattle to Montreal round-trip?
Our cheapest airline available from Seattle to Montreal is United Airlines. Our recent data shows that you can find tickets from as low as $199 on this airline. Additional options worth looking into are Air Canada and WestJet, starting at $254 and $289 round-trip. United Airlines is priced at 67% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Seattle to Montreal one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $165. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Seattle to Montreal for a low price.
What are the cheapest flights from Seattle to Montreal?
Looking for the cheapest flight from Seattle to Montreal? While on average our users pay $1,583, our data indicates the cheapest price to be $274. The most popular route (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl), is priced around $310.
Can I find deals for flights from Seattle to Montreal that include hotel bookings?
Yes. In addition to deals on Seattle to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Montreal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Montreal.
Can I find deals for business class flights from Seattle to Montreal?
Yes. Cheapflights offers flight deals from Seattle to Montreal 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 Seattle to Montreal?
Currently, May is the cheapest month in which you can book a flight from Seattle to Montreal (average of $214). Flying from Seattle to Montreal in December is currently the most expensive (average of $563). 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

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Seattle to Montreal

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$207	Average$638	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$277	Average$654	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$289	Average$528	FlexibilityNo cancel fee	On-time60%
Delta	Cheapest$354	Average$654	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$493	Average$668	FlexibilityNo cancel fee	On-time71%

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$115+ Cheap flights from Seattle (SEA) to Montreal (YMQ)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Montreal with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal are usually found in September or August, booked 76 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Seattle to Montreal

Cheapest flights from Seattle to MontrealExplore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from Seattle to Montreal

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Montreal that are best for you.

Compare providers for flights from Seattle to Montreal

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Montreal in December.

Best time to book a flight from Seattle to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Montreal

How far ahead should I book a flight from Seattle to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Montreal. Price data was last updated on December 19, 2025.

What is the cheapest month to book a flight from Seattle to Montreal?

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

Find hourly flight availability from Seattle to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

How much does it cost to fly round-trip from Seattle to Montreal?

Reviews of airlines servicing Montreal

Get a feel of what it's like to fly with Delta, United Airlines, and WestJet from Seattle to Montreal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to Montreal?

How long is the flight from Seattle to Montreal?

What are the cheapest airlines flying from Seattle to Montreal round-trip?

What are the cheapest airlines to fly from Seattle to Montreal one-way?

What are the cheapest flights from Seattle to Montreal?

Can I find deals for flights from Seattle to Montreal that include hotel bookings?

How can I find direct flights from Seattle to Montreal?

Can I find deals for business class flights from Seattle to Montreal?

What is the cheapest month to book a flight from Seattle to Montreal?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Montreal

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Seattle to Montreal

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Cheapest flights from Seattle to Montreal
Explore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.