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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle from C$ 259

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SEA
22 Jan — 29 Jan1
1 adult

The best prices from Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl are usually found in October or January, booked 37 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Pierre Elliott Trudeau Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Seattle (SEA). 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 17 January 2025.

Round-trip from

C$ 535

One-way from

C$ 264

Popular in

December

Cheapest in

October

Average price

C$ 688
18/2-25/2
  • 18/2-25/2
  • 6 total stops
  • 66h 10m total
  • Montreal to Seattle
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19/2
  • 19/2
  • 2 total stops
  • 29h 50m total
  • Montreal to Seattle
Search Deals
High demand for flights, 3% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Seattle

Cheapest flights from Pierre Elliott Trudeau Intl to Seattle
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Tue 18/26:45 a.m.YUL - SEA
2 stops34h 36mWestJet
Tue 25/23:15 p.m.SEA - YUL
2 stops30h 24mWestJet
Deal found 16/1C$ 535
Tue 18/26:45 a.m.YUL - SEA
2 stops20h 40mMultiple Airlines
Tue 25/25:15 a.m.SEA - YUL
2 stops31h 21mMultiple Airlines
Deal found 15/1C$ 538
Tue 21/112:48 p.m.YUL - SEA
1 stop12h 37mDelta
Fri 24/112:00 p.m.SEA - YUL
1 stop8h 36mDelta
Deal found 14/1C$ 542
Thu 23/112:55 p.m.YUL - SEA
2 stops11h 23mAmerican Airlines
Wed 29/11:43 p.m.SEA - YUL
2 stops19h 37mAmerican Airlines
Deal found 15/1C$ 543
Tue 11/27:30 a.m.YUL - SEA
1 stop10h 00mAir Canada
Sun 16/25:45 a.m.SEA - YUL
1 stop8h 18mAir Canada
Deal found 14/1C$ 730
Sat 15/28:05 a.m.YUL - SEA
3 stops13h 24mUnited Airlines
Fri 21/27:32 p.m.SEA - YUL
2 stops11h 48mUnited Airlines
Deal found 15/1C$ 739

Find flights from Pierre Elliott Trudeau Intl to Seattle within your budget

Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Seattle 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 629,999 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/2

6:45 a.m.-12:19 a.m.

3 stops20h 34m

Seattle/Tacoma Intl

Tue 18/2

5:15 a.m.-2:55 p.m.

3 stops30h 40m

C$ 532

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 18/2

6:45 a.m.-2:21 p.m.

2 stops34h 36m

Seattle/Tacoma Intl

Tue 25/2

3:15 p.m.-12:39 a.m.

2 stops30h 24m

C$ 535

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/2

7:00 a.m.-6:00 p.m.

1 stop14h 00m

Seattle/Tacoma Intl

Tue 18/2

6:00 a.m.-3:57 p.m.

1 stop6h 57m

C$ 552

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/2

7:14 a.m.-7:10 p.m.

1 stop14h 56m

Seattle/Tacoma Intl

Mon 17/2

12:25 a.m.-4:55 p.m.

2 stops13h 30m

C$ 569

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 7/2

7:30 a.m.-2:30 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Sun 9/2

10:35 a.m.-8:43 p.m.

1 stop7h 08m

C$ 743

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 1/3

8:35 a.m.-8:19 p.m.

1 stop14h 44m

Seattle/Tacoma Intl

Wed 12/3

3:01 p.m.-8:32 a.m.

2 stops14h 31m

C$ 750

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 20/5

7:00 a.m.-8:42 p.m.

2 stops16h 42m

C$ 259

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 19/2

4:45 p.m.-10:00 a.m.

3 stops20h 15m

C$ 285

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 30/1

4:50 p.m.-10:25 p.m.

1 stop8h 35m

C$ 318

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 19/2

7:14 a.m.-9:21 p.m.

1 stop17h 07m

C$ 325

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/1

Showing 1-10 of 12 results
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Best time to book a flight from Pierre Elliott Trudeau Intl to Seattle

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

Travel insights for flights from Pierre Elliott Trudeau Intl to Seattle

Get recent, data-driven insights about flights from Pierre Elliott Trudeau Intl to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Seattle. Price data was last updated on 10 January 2025.

The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle is 37 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle (average of C$ 257). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle in April is currently the most expensive (average of C$ 421). 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 YUL to SEA?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to Seattle in the evening. Doing so could potentially save you 53% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 17 January 2025.
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.2
Good
2,824 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada
7.0
Good
8,587 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    For a flight from Montreal Pierre Elliott Trudeau Intl to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 4 airlines have flights to Seattle/Tacoma Intl from Montreal Pierre Elliott Trudeau Intl on a regular basis.

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

    Flying on Delta is currently your cheapest option to Seattle, with prices starting at C$ 542. Additional round-trip tickets that might be worth considering are offered by American Airlines and WestJet, with the lowest prices starting at C$ 543 and C$ 550, respectively. Delta is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 285. Users have also found prices from C$ 312 and C$ 319 on Delta and American Airlines, respectively.

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

    Looking for the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle? While on average our users pay C$ 773, our data indicates the cheapest price to be C$ 625. The most popular route (Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl), is priced around C$ 435.

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

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Seattle 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle (average of C$ 257). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle in April is currently the most expensive (average of C$ 421). 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

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

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
SeaTac
Marysville
Tukwila
Tacoma
Bothell
Olympia
Lynnwood
Leavenworth

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Alternative routes for Pierre Elliott Trudeau Intl to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Portland flights
Pierre Elliott Trudeau Intl to Spokane flights
Pierre Elliott Trudeau Intl to Pasco flights

Top 4 airlines flying from Pierre Elliott Trudeau Intl to Seattle

Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl to Seattle. 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 629,999 searches. Data last updated 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 407AverageC$ 655FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 530AverageC$ 772FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 587AverageC$ 759FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 592AverageC$ 850FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Pierre Elliott Trudeau Intl to Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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