In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport when rainfall is around 2.5 in.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau Intl Airport, 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 most popular airlines that fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Before booking your flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl?

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

How can I find direct flights from Seattle to Pierre Elliott Trudeau Intl?

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

Can I find deals for business class flights from Seattle to Pierre Elliott Trudeau Intl?

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

$130+ Cheap Flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl are usually found in May or June, booked 54 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$276 (Trip.com)
One-way from	$130 (FlightHub)
Popular in	April
Cheapest in	May
Average price	$526
Good round-trip deal	$601 or less
Good one-way deal	$259 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-Montreal Pierre Elliott Trudeau Intl flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Montreal Pierre Elliott Trudeau Intl flights.

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From Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl

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One-way flight from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl

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High demand for flights, 0% potential price rise

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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in October 2025

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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl.

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Price to beat on a one-way flight from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl.

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Find flight deals from Seattle to Pierre Elliott Trudeau Intl

Cheapest flights from Seattle to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Seattle to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Thu 12/43:10 pmSEA - YUL

1 stop12h 55mWestJet

Tue 12/97:30 pmYUL - SEA

1 stop21h 50mWestJet

Deal found 10/28

$378

Thu 12/43:10 pmSEA - YUL

1 stop12h 55mWestJet

Sun 12/77:30 pmYUL - SEA

1 stop21h 50mWestJet

Deal found 10/28

$380

Mon 11/243:10 pmSEA - YUL

1 stop21h 02mWestJet

Mon 12/17:30 pmYUL - SEA

1 stop21h 50mWestJet

Deal found 10/25

$385

Fri 12/123:10 pmSEA - YUL

1 stop19h 22mMultiple Airlines

Fri 12/192:30 pmYUL - SEA

2 stops24h 01mMultiple Airlines

Deal found 10/28

$390

Thu 12/43:10 pmSEA - YUL

1 stop12h 55mWestJet

Mon 12/84:15 pmYUL - SEA

1 stop25h 05mWestJet

Deal found 10/28

$395

Sun 11/237:56 pmSEA - YUL

1 stop17h 31mMultiple Airlines

Sun 11/305:25 pmYUL - SEA

2 stops23h 55mMultiple Airlines

Deal found 10/26

$397

Mon 11/243:10 pmSEA - YUL

1 stop19h 22mMultiple Airlines

Mon 12/16:45 amYUL - SEA

2 stops34h 35mMultiple Airlines

Deal found 10/25

$400

Tue 11/183:10 pmSEA - YUL

1 stop19h 22mMultiple Airlines

Sun 11/236:00 pmYUL - SEA

1 stop23h 20mMultiple Airlines

Deal found 10/26

$403

Best flights from Seattle to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Seattle to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Thu 12/43:10 pmSEA - YUL

2 stops30h 33mWestJet

Sun 12/77:30 pmYUL - SEA

1 stop21h 50mWestJet

Deal found 10/26

$411

Wed 11/197:55 amSEA - YUL

1 stop13h 48mMultiple Airlines

Sun 11/236:00 pmYUL - SEA

2 stops19h 22mMultiple Airlines

Deal found 10/26

$435

Thu 11/209:35 pmSEA - YUL

2 stops11h 24mDelta

Sun 11/237:10 amYUL - SEA

2 stops11h 25mDelta

Deal found 10/26

$465

Thu 12/113:10 pmSEA - YUL

1 stop12h 55mWestJet

Mon 12/156:45 amYUL - SEA

2 stops34h 35mWestJet

Deal found 10/25

$439

Thu 11/207:55 amSEA - YUL

1 stop13h 48mMultiple Airlines

Sun 11/236:00 pmYUL - SEA

2 stops19h 22mMultiple Airlines

Deal found 10/26

$461

Wed 11/267:15 amSEA - YUL

2 stops13h 27mDelta

Wed 12/37:10 amYUL - SEA

2 stops14h 16mDelta

Deal found 10/27

$506

Mon 11/243:10 pmSEA - YUL

1 stop19h 22mMultiple Airlines

Thu 11/275:55 pmYUL - SEA

1 stop18h 04mMultiple Airlines

Deal found 10/28

$510

Thu 12/113:10 pmSEA - YUL

2 stops30h 33mWestJet

Thu 12/186:45 amYUL - SEA

2 stops34h 35mWestJet

Deal found 10/27

$511

Sun 11/166:00 amSEA - YUL

1 stop8h 21mDelta

Sat 11/227:10 amYUL - SEA

2 stops14h 31mDelta

Deal found 10/27

$515

Wed 11/1912:05 pmSEA - YUL

2 stops8h 37mDelta

Mon 11/244:45 pmYUL - SEA

1 stop8h 38mDelta

Deal found 10/26

$515

Sat 11/1511:10 pmSEA - YUL

1 stop9h 49mDelta

Fri 11/217:10 amYUL - SEA

2 stops11h 25mDelta

Deal found 10/27

$515

Fri 11/149:28 amSEA - YUL

1 stop11h 14mDelta

Wed 11/197:10 amYUL - SEA

2 stops17h 04mDelta

Deal found 10/27

$515

Last-minute flights from Seattle to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from Seattle to Pierre Elliott Trudeau Intl. Data last updated October 28, 2025 and is based on user searches.

Mon 11/311:55 amSEA - YUL

2 stops22h 37mMultiple Airlines

Fri 11/75:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$627

Mon 11/311:55 amSEA - YUL

2 stops22h 37mMultiple Airlines

Sat 11/85:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$655

Mon 11/311:55 amSEA - YUL

2 stops22h 37mMultiple Airlines

Thu 11/65:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$685

Mon 11/38:00 amSEA - YUL

1 stop13h 30mMultiple Airlines

Wed 11/55:10 pmYUL - SEA

1 stop20h 15mMultiple Airlines

Deal found 10/27

$718

Tue 11/49:59 pmSEA - YUL

2 stops11h 03mDelta

Wed 11/1212:45 pmYUL - SEA

1 stop14h 14mDelta

Deal found 10/28

$668

Tue 11/49:34 pmSEA - YUL

2 stops15h 56mMultiple Airlines

Fri 11/75:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$675

Tue 11/49:34 pmSEA - YUL

1 stop15h 51mMultiple Airlines

Sat 11/85:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$693

Tue 11/49:34 pmSEA - YUL

2 stops12h 26mMultiple Airlines

Thu 11/65:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/26

$722

Thu 11/69:37 amSEA - YUL

3 stops29h 03mMultiple Airlines

Sun 11/95:25 pmYUL - SEA

3 stops19h 57mMultiple Airlines

Deal found 10/26

$683

Fri 11/78:48 amSEA - YUL

1 stop28h 37mMultiple Airlines

Thu 11/135:10 pmYUL - SEA

1 stop20h 30mMultiple Airlines

Deal found 10/27

$701

Fri 11/712:59 amSEA - YUL

2 stops11h 19mAmerican Airlines

Thu 11/137:14 amYUL - SEA

1 stop16h 45mAmerican Airlines

Deal found 10/25

$705

One-way flights from Seattle to Pierre Elliott Trudeau Intl
Search for one-way flight options from Seattle to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Sun 4/193:10 pmSEA - YUL

2 stops30h 28mWestJet

Deal found 10/27

$130

Sun 11/2311:10 pmSEA - YUL

1 stop14h 17mMultiple Airlines

Deal found 10/26

$165

Thu 12/43:10 pmSEA - YUL

1 stop12h 55mWestJet

Deal found 10/28

$171

Mon 11/243:10 pmSEA - YUL

1 stop19h 22mMultiple Airlines

Deal found 10/26

$177

Mon 11/2411:55 amSEA - YUL

2 stops24h 17mWestJet

Deal found 10/26

$178

Fri 11/2111:55 amSEA - YUL

3 stops26h 00mMultiple Airlines

Deal found 10/28

$188

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 12/4

3:10 pm-12:43 am

2 stops30h 33m

Montreal Pierre Elliott Trudeau Intl

Sun 12/7

7:30 pm-2:20 pm

1 stop21h 50m

$411

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 11/19

7:55 am-12:43 am

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Sun 11/23

6:00 pm-10:22 am

2 stops19h 22m

$435

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 12/11

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 12/15

6:45 am-2:20 pm

2 stops34h 35m

$439

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 11/20

7:55 am-12:43 am

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Sun 11/23

6:00 pm-10:22 am

2 stops19h 22m

$461

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 11/20

9:35 pm-11:59 am

2 stops11h 24m

Montreal Pierre Elliott Trudeau Intl

Sun 11/23

7:10 am-3:35 pm

2 stops11h 25m

$465

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 11/26

7:15 am-11:42 pm

2 stops13h 27m

Montreal Pierre Elliott Trudeau Intl

Wed 12/3

7:10 am-6:26 pm

2 stops14h 16m

$506

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 11/24

3:10 pm-1:32 pm

1 stop19h 22m

Montreal Pierre Elliott Trudeau Intl

Thu 11/27

5:55 pm-8:59 am

1 stop18h 04m

$510

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 12/11

3:10 pm-12:43 am

2 stops30h 33m

Montreal Pierre Elliott Trudeau Intl

Thu 12/18

6:45 am-2:20 pm

2 stops34h 35m

$511

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 11/16

6:00 am-5:21 pm

1 stop8h 21m

Montreal Pierre Elliott Trudeau Intl

Sat 11/22

7:10 am-6:41 pm

2 stops14h 31m

$515

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 11/19

12:05 pm-11:42 pm

2 stops8h 37m

Montreal Pierre Elliott Trudeau Intl

Mon 11/24

4:45 pm-10:23 pm

1 stop8h 38m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 20 results

Compare providers for flights from Seattle to Pierre Elliott Trudeau Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Pierre Elliott Trudeau Intl in October.

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

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

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport

How far ahead should I book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

The best time to book flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is 54 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.

What is the cheapest month to book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of $205). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $317). 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 YUL?

When flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 63% versus a flight in the morning.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Seattle to Montreal Pierre Elliott Trudeau Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Delta

7.9

Good

7,994 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

United Airlines

7.4

Good

9,001 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

American Airlines

7.2

Good

11,032 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

WestJet

7.2

Good

3,148 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Air Canada

7.1

Good

10,371 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Related info for your journey

What airport do you fly from for flights from Seattle to Montreal Pierre Elliott Trudeau Intl?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Montreal Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport?
Airlines like WestJet and Delta fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in about 11h 24m. The time it takes to get you to your destination can typically vary by up to 19h 09m. The distance from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is about 2276 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport round-trip?
Currently priced at $207, United Airlines will fly you from Seattle to Montreal Pierre Elliott Trudeau Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and WestJet - these airlines can fly you to your destination from $274 and $289, respectively. United Airlines is 62% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
While on average a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is generally $1,651, our data shows the cheapest flight currently is $259. When looking at the most popular route, (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $379 for that flight.
Can I find deals for flights from Seattle to Pierre Elliott Trudeau Intl that include hotel bookings?
Yes. In addition to deals on Seattle to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Pierre Elliott Trudeau Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Pierre Elliott Trudeau Intl.
Can I find deals for business class flights from Seattle to Pierre Elliott Trudeau Intl?
Yes. Cheapflights offers flight deals from Seattle to Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of $205). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $317). 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

Laval

Longueuil

Brossard

Dorval

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Top 5 airlines flying from Seattle to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$207	Average$630	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$274	Average$608	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$289	Average$546	FlexibilityNo cancel fee	On-time60%
Delta	Cheapest$455	Average$654	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$493	Average$668	FlexibilityNo cancel fee	On-time71%

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$130+ Cheap flights from Seattle (SEA) to Pierre Elliott Trudeau Intl (YUL)

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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl are usually found in May or June, booked 54 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl

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

Find flight deals from Seattle to Pierre Elliott Trudeau Intl

Cheapest flights from Seattle to Pierre Elliott Trudeau IntlExplore the most affordable flight options available from Seattle to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Explore the most affordable flight options available from Seattle to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Compare providers for flights from Seattle to Pierre Elliott Trudeau Intl

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 Pierre Elliott Trudeau Intl in October.

Best time to book a flight from Seattle to Pierre Elliott Trudeau Intl

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport

How far ahead should I book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

What is the cheapest month to book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

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

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Related info for your journey

Find useful and relevant information for your journey from Seattle to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl?

How long is the flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

What are the cheapest airlines flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

What are the cheapest flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Can I find deals for flights from Seattle to Pierre Elliott Trudeau Intl that include hotel bookings?

How can I find direct flights from Seattle to Pierre Elliott Trudeau Intl?

Can I find deals for business class flights from Seattle to Pierre Elliott Trudeau Intl?

What is the cheapest month to book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Pierre Elliott Trudeau Intl

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

Top 5 airlines flying from Seattle to Pierre Elliott Trudeau Intl

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Cheapest flights from Seattle to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Seattle to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.