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Pierre Elliott Trudeau Intl

$147+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 90 days in advance, depart on a Thursday or Monday and return on a Monday

Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Pierre Elliott Trudeau Intl (YUL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$352
(FlightHub)

One-way from

$147
(Kiwi.com)

Popular in

April

Cheapest in

May

Average price

$437

Good round-trip deal

$522 or less

Good one-way deal

$194 or less
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 June 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 junio 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/241:50 pmSEA - YUL
1 stop7h 51mWestJet
lun. 9/297:00 amYUL - SEA
1 stop8h 59mWestJet
Deal found 6/11$352
This Flightnetwork deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/82:05 pmSEA - YUL
1 stop7h 38mMultiple Airlines
mar. 7/225:45 pmYUL - SEA
Nonstop5h 56mMultiple Airlines
Deal found 6/10$370
This Flightnetwork deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/87:20 amSEA - YUL
Nonstop5h 09mAir Canada
mar. 7/225:45 pmYUL - SEA
Nonstop5h 56mAir Canada
Deal found 6/10$397
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/131:22 amSEA - YUL
1 stop10h 28mAmerican Airlines
sáb. 6/145:29 pmYUL - SEA
1 stop19h 35mAmerican Airlines
Deal found 6/11$436
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/1411:24 pmSEA - YUL
1 stop10h 45mUnited Airlines
sáb. 6/216:30 pmYUL - SEA
1 stop9h 29mUnited Airlines
Deal found 6/11$482
This Kissandfly.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/1311:32 pmSEA - YUL
1 stop12h 18mBritish Airways
jue. 6/1912:30 pmYUL - SEA
1 stop14h 47mBritish Airways
Deal found 6/11$522
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:25 amSEA - YUL
1 stop11h 59mDelta
lun. 12/86:00 amYUL - SEA
1 stop11h 24mDelta
Deal found 6/11$538

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Pierre Elliott Trudeau Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
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

Seattle

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 9/24

1:50 pm-12:41 am

1 stop7h 51m

Montreal Pierre Elliott Trudeau Intl

lun. 9/29

7:00 am-12:59 pm

1 stop8h 59m

$352

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mar. 7/8

2:05 pm-12:43 am

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

mar. 7/22

5:45 pm-8:41 pm

Nonstop5h 56m

$370

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mar. 7/8

7:20 am-3:29 pm

Nonstop5h 09m

Montreal Pierre Elliott Trudeau Intl

mar. 7/22

5:45 pm-8:41 pm

Nonstop5h 56m

$397

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

lun. 6/30

12:20 am-10:40 am

1 stop7h 20m

Montreal Pierre Elliott Trudeau Intl

mié. 7/9

6:30 pm-12:59 am

1 stop9h 29m

$488

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

lun. 8/18

12:45 am-4:41 pm

1 stop12h 56m

Montreal Pierre Elliott Trudeau Intl

mar. 8/26

7:29 am-10:00 pm

1 stop17h 31m

$489

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

jue. 12/4

8:25 am-11:24 pm

1 stop11h 59m

Montreal Pierre Elliott Trudeau Intl

lun. 12/8

6:00 am-2:24 pm

1 stop11h 24m

$538

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

vie. 10/3

1:50 pm-12:41 am

1 stop7h 51m

$147

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

lun. 7/21

2:05 pm-2:12 pm

2 stops21h 07m

$165

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

lun. 10/6

3:13 pm-11:35 am

1 stop17h 22m

$170

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 7/23

6:15 pm-12:59 pm

1 stop15h 44m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 13 results
1
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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?

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 June 9, 2025.

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, 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?

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 junio 12, 2025.

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 67% versus a flight in the morning.

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 June 8, 2025.

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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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

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

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pierre Elliott Trudeau Intl. Reviews last updated junio 12, 2025.
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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    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 1 outbound flight 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 $352, 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 Air Canada and United Airlines - these airlines can fly you to your destination from $397 and $488, respectively. WestJet is 36% 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 $147. Users have also found prices from $170 and $193 on American Airlines and Sun Country Air, 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 $1,862, our data shows the cheapest flight currently is $126. When looking at the most popular route, (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $354 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.

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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.
Portland to Pierre Elliott Trudeau Intl flights
Bellingham to Pierre Elliott Trudeau Intl flights
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Pasco to Pierre Elliott Trudeau Intl flights

Top 5 airlines flying from Seattle to Pierre Elliott Trudeau Intl

Discover the top 5 airlines that operate flights from Seattle to Pierre Elliott Trudeau Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$615FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$269Average$609FlexibilityNo cancel feeOn-time67%
WestJetCheapest$283Average$473FlexibilityNo cancel feeOn-time60%
DeltaCheapest$455Average$656FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$465Average$670FlexibilityNo cancel feeOn-time71%

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