What are the cheapest airlines to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport one-way?

For one-way options, check prices for WestJet. According to our data, you can fly for as low as $149. Users have also found prices from $225 and $265 on American Airlines and Air Canada, respectively.

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: American Airlines, Air Canada or Delta.

What is the cheapest day to fly round-trip from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 19% when planning your travel around this day of the week.

What is the cheapest month to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

May is one of the best times of the year to fly to Montreal Pierre Elliott Trudeau Intl Airport from Seattle. Prices for May average $623 per person but you can even find prices for as low as $203. The most expensive prices can be found in the month of February. Opting for a May flight can save you 27% on your journey compared to booking in February

Most accurate provider : When it comes to deals on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

$146+ Save on 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”

2. Select your favorite providers

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.

3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl are usually found in February or June, booked 27 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$333 (Kiwi.com)
One-way from	$146 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$626
Good round-trip deal	$714 or less
Good one-way deal	$322 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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Highest demand for flights based on searches. 5% potential increase in price ($31 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in March 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 March 25, 2025.

Mon 7/142:05 pmSEA - YUL

1 stop7h 38mWestJet

Tue 7/227:00 amYUL - SEA

1 stop8h 58mWestJet

Deal found 3/23

$325

Wed 5/76:00 amSEA - YUL

2 stops15h 37mMultiple Airlines

Wed 5/147:00 amYUL - SEA

1 stop8h 58mMultiple Airlines

Deal found 3/22

$333

Tue 4/81:35 pmSEA - YUL

1 stop19h 09mAmerican Airlines

Tue 4/222:30 pmYUL - SEA

1 stop9h 34mAmerican Airlines

Deal found 3/23

$510

Mon 5/512:45 amSEA - YUL

2 stops12h 19mDelta

Tue 5/1311:00 amYUL - SEA

2 stops14h 23mDelta

Deal found 3/24

$525

Thu 5/85:40 amSEA - YUL

1 stop8h 02mAir Canada

Thu 5/154:45 pmYUL - SEA

Nonstop5h 52mAir Canada

Deal found 3/24

$538

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 March 25, 2025.

Wed 5/76:00 amSEA - YUL

2 stops15h 37mMultiple Airlines

Wed 5/147:00 amYUL - SEA

1 stop8h 58mMultiple Airlines

Deal found 3/22

$333

Tue 5/132:05 pmSEA - YUL

1 stop7h 38mWestJet

Mon 5/197:00 amYUL - SEA

1 stop8h 58mWestJet

Deal found 3/23

$335

Tue 4/81:35 pmSEA - YUL

1 stop19h 09mAmerican Airlines

Tue 4/222:30 pmYUL - SEA

1 stop9h 34mAmerican Airlines

Deal found 3/23

$510

Mon 5/512:45 amSEA - YUL

2 stops12h 19mDelta

Tue 5/1311:00 amYUL - SEA

2 stops14h 23mDelta

Deal found 3/24

$525

Thu 5/85:40 amSEA - YUL

1 stop8h 02mAir Canada

Thu 5/154:45 pmYUL - SEA

Nonstop5h 52mAir Canada

Deal found 3/24

$538

Thu 5/111:59 pmSEA - YUL

1 stop10h 57mUnited Airlines

Wed 5/71:15 pmYUL - SEA

1 stop12h 27mUnited Airlines

Deal found 3/24

$618

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 March 25, 2025 and is based on user searches.

Tue 4/13:15 pmSEA - YUL

2 stops30h 24mWestJet

Mon 4/76:45 amYUL - SEA

2 stops34h 36mWestJet

Deal found 3/23

$752

Wed 4/212:59 amSEA - YUL

2 stops13h 00mAmerican Airlines

Sun 4/63:44 pmYUL - SEA

1 stop12h 07mAmerican Airlines

Deal found 3/23

$648

Tue 4/81:35 pmSEA - YUL

1 stop19h 09mAmerican Airlines

Tue 4/222:30 pmYUL - SEA

1 stop9h 34mAmerican Airlines

Deal found 3/23

$510

Wed 4/235:45 amSEA - YUL

2 stops11h 39mAir Canada

Sun 4/277:30 amYUL - SEA

1 stop17h 33mAir Canada

Deal found 3/23

$622

Mon 4/2812:45 amSEA - YUL

2 stops12h 19mDelta

Thu 5/112:50 pmYUL - SEA

2 stops13h 26mDelta

Deal found 3/23

$547

Tue 4/292:05 pmSEA - YUL

1 stop7h 38mWestJet

Mon 5/56:45 amYUL - SEA

2 stops16h 43mWestJet

Deal found 3/24

$359

Tue 4/2912:30 pmSEA - YUL

2 stops33h 13mMultiple Airlines

Mon 5/53:10 pmYUL - SEA

2 stops23h 25mMultiple Airlines

Deal found 3/24

$364

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 March 25, 2025.

Thu 5/18:56 pmSEA - YUL

2 stops24h 47mMultiple Airlines

Deal found 3/23

$146

Mon 5/52:05 pmSEA - YUL

1 stop7h 38mWestJet

Deal found 3/23

$149

Sun 4/1312:59 amSEA - YUL

1 stop10h 56mAmerican Airlines

Deal found 3/24

$225

Wed 5/77:20 amSEA - YUL

Nonstop5h 10mAir Canada

Deal found 3/23

$265

Wed 5/75:18 pmSEA - YUL

1 stop17h 38mUnited Airlines

Deal found 3/23

$277

Sun 5/412:45 amSEA - YUL

2 stops12h 19mDelta

Deal found 3/23

$286

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

Wed 5/7

6:00 am-12:37 am

2 stops15h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 5/14

7:00 am-12:58 pm

1 stop8h 58m

$333

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 5/13

2:05 pm-12:43 am

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Mon 5/19

7:00 am-12:58 pm

1 stop8h 58m

$335

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 4/8

1:35 pm-11:44 am

1 stop19h 09m

Montreal Pierre Elliott Trudeau Intl

Tue 4/22

2:30 pm-9:04 pm

1 stop9h 34m

$510

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 5/5

12:45 am-4:04 pm

2 stops12h 19m

Montreal Pierre Elliott Trudeau Intl

Tue 5/13

11:00 am-10:23 pm

2 stops14h 23m

$525

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 5/8

5:40 am-4:42 pm

1 stop8h 02m

Montreal Pierre Elliott Trudeau Intl

Thu 5/15

4:45 pm-7:37 pm

Nonstop5h 52m

$538

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 5/1

11:59 pm-1:56 pm

1 stop10h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 5/7

1:15 pm-10:42 pm

1 stop12h 27m

$618

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 5/1

8:56 pm-12:43 am

2 stops24h 47m

$146

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 5/5

2:05 pm-12:43 am

1 stop7h 38m

$149

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 4/13

12:59 am-2:55 pm

1 stop10h 56m

$225

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 5/7

7:20 am-3:30 pm

Nonstop5h 10m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 12 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 March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

The best insider tips for Seattle to Montreal Pierre Elliott Trudeau Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Montreal Pierre Elliott Trudeau Intl Airport trip

Airports

SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for free security appointments to reduce wait times.

YUL

Use the ArriveCAN app to fill out your arrival declaration card before landing at YUL to avoid lines at passport control.

Our travel experts

John Walton

Expert on YUL

Brandon Schultz

Expert on SEA

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 27 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, January is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 72% versus a flight in the morning.

What is the cheapest day to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Travelers seeking maximum savings on their Seattle to Montreal Pierre Elliott Trudeau Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Pierre Elliott Trudeau Intl by month

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.

Temperature in Pierre Elliott Trudeau Intl by month

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).

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Read through reviews of airlines operating flights from Seattle to Montreal, such as Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,890 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,605 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,785 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,952 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.
What are the cheapest airlines flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport round-trip?
Currently priced at $335, WestJet will fly you from Seattle to Montreal Pierre Elliott Trudeau Intl Airport and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $510 and $525, respectively. WestJet is 41% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as $149. Users have also found prices from $225 and $265 on American Airlines and Air Canada, respectively.
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 $1,697, our data shows the cheapest flight currently is $227. When looking at the most popular route, (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $336 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, January is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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

Dorval

Brossard

Longueuil

Sherbrooke

Bromont

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Top 5 airlines flying from Seattle to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$240	Average$621	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$260	Average$605	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$312	Average$459	FlexibilityNo cancel fee	On-time60%
Delta	Cheapest$455	Average$656	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$483	Average$686	FlexibilityNo cancel fee	On-time71%

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$146+ 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 5/1. 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 February or June, booked 27 days in advance, depart on a Thursday or Wednesday and return on a Thursday

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 March 25, 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 March 25, 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 March.

The best insider tips for Seattle to Montreal Pierre Elliott Trudeau Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Montreal Pierre Elliott Trudeau Intl Airport trip

Airports

SEA

YUL

Our travel experts

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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Pierre Elliott Trudeau Intl. Price data was last updated on March 21, 2025.

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?

Find hourly flight availability from Seattle to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

What is the cheapest day to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Pierre Elliott Trudeau Intl. Price data was last updated on March 23, 2025.

Rainfall in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average rainfall totals by month.

Temperature in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Read through reviews of airlines operating flights from Seattle to Montreal, such as Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's 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 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?

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

What are the cheapest airlines to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport one-way?

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 Seattle?

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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 March 25, 2025.