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SEA - YUL

C$ 189 Find cheap flights from Seattle to Montreal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Montreal departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Montreal

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Montreal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Montreal, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,168,857 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Montreal (SEA-YUL)

 
These are the cheapest deals for flights from Seattle to Montreal currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Montreal

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Montreal.

Recent one-way flight deals from Seattle to Montreal

Only flying one-way? Below are some of the best one-way flight deals from Seattle to Montreal found on KAYAK recently.

Recent last-minute flight deals from Seattle to Montreal

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Seattle to Montreal.

Recent direct flight deals from Seattle to Montreal

The latest deals for direct flights from Seattle to Montreal so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Seattle to Montreal

Find recent round-trip train or bus tickets from Seattle to Montreal.

All round-trip flight deals to Montreal

The cheapest plane tickets to Montreal found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:28 p.m. - 4:35 p.m.SEA-YUL
20h 07m1 stop
5:35 p.m. - 4:23 p.m.YUL-SEA
25h 48m1 stop
C$ 400
Find Deal
Wed, 13 Nov - Tue, 19 Nov
5:28 p.m. - 8:58 a.m.SEA-YUL
12h 30m2 stops
5:35 p.m. - 4:23 p.m.YUL-SEA
25h 48m1 stop
C$ 412
Find Deal
Wed, 13 Nov - Tue, 19 Nov
3:15 p.m. - 5:26 p.m.SEA-YUL
23h 11m2 stops
6:45 a.m. - 2:21 p.m.YUL-SEA
34h 36m2 stops
C$ 619WestJet
Find Deal
Mon, 11 Nov - Wed, 13 Nov
8:55 a.m. - 11:12 p.m.SEA-YUL
11h 17m2 stops
12:50 p.m. - 8:50 p.m.YUL-SEA
11h 00m2 stops
C$ 626Delta
Find Deal
Tue, 5 Nov - Tue, 12 Nov
11:05 p.m. - 11:30 a.m.SEA-YUL
9h 25m1 stop
3:13 p.m. - 10:22 p.m.YUL-SEA
10h 09m1 stop
C$ 639Delta
Find Deal
Mon, 21 Oct - Fri, 25 Oct
3:15 p.m. - 5:26 p.m.SEA-YUL
23h 11m2 stops
6:30 p.m. - 2:21 p.m.YUL-SEA
22h 51m2 stops
C$ 673WestJet
Find Deal
Sun, 9 Feb - Wed, 12 Feb
12:25 a.m. - 4:45 p.m.SEA-YUL
13h 20m2 stops
10:59 a.m. - 10:05 p.m.YUL-SEA
14h 06m2 stops
C$ 714American Airlines
Find Deal
Fri, 15 Nov - Mon, 25 Nov
12:47 a.m. - 4:45 p.m.SEA-YUL
12h 58m2 stops
10:59 a.m. - 10:05 p.m.YUL-SEA
14h 06m2 stops
C$ 740American Airlines
Find Deal
Tue, 12 Nov - Mon, 18 Nov
5:45 a.m. - 5:03 p.m.SEA-YUL
8h 18m1 stop
1:25 p.m. - 6:32 p.m.YUL-SEA
8h 07m1 stop
C$ 823Air Canada
Find Deal
Sat, 16 Nov - Thu, 28 Nov
6:05 a.m. - 5:23 p.m.SEA-YUL
8h 18m1 stop
9:00 a.m. - 2:25 p.m.YUL-SEA
8h 25m1 stop
C$ 829Air Canada
Find Deal
Sun, 8 Dec - Sun, 15 Dec
9:01 p.m. - 8:58 a.m.SEA-YUL
32h 57m2 stops
C$ 189
Find Deal
Mon, 28 Oct
1:33 p.m. - 8:58 a.m.SEA-YUL
16h 25m2 stops
C$ 196
Find Deal
Tue, 29 Oct
7:00 a.m. - 8:15 p.m.SEA-YUL
34h 15m2 stops
C$ 256WestJet
Find Deal
Mon, 14 Oct
7:00 a.m. - 8:15 p.m.SEA-YUL
34h 15m2 stops
C$ 261WestJet
Find Deal
Tue, 15 Oct
10:35 a.m. - 8:43 p.m.SEA-YUL
7h 08m1 stop
C$ 292Air Canada
Find Deal
Wed, 5 Feb
8:55 a.m. - 11:12 p.m.SEA-YUL
11h 17m1 stop
C$ 333Delta
Find Deal
Tue, 29 Oct
12:26 a.m. - 4:40 p.m.SEA-YUL
13h 14m1 stop
C$ 356American Airlines
Find Deal
Sun, 27 Oct
10:10 p.m. - 1:32 p.m.SEA-YUL
12h 22m1 stop
C$ 360American Airlines
Find Deal
Fri, 8 Nov
8:50 a.m. - 11:37 p.m.SEA-YUL
11h 47m2 stops
C$ 369Delta
Find Deal
Wed, 5 Feb
6:05 a.m. - 5:23 p.m.SEA-YUL
8h 18m1 stop
C$ 382Air Canada
Find Deal
Sat, 23 Nov
7:00 a.m. - 3:45 p.m.SEA-YUL
29h 45m1 stop
9:15 p.m. - 8:26 p.m.YUL-SEA
26h 11m2 stops
C$ 581
Find Deal
Sat, 12 Oct - Wed, 16 Oct
7:00 a.m. - 3:45 p.m.SEA-YUL
29h 45m1 stop
5:00 p.m. - 8:26 p.m.YUL-SEA
30h 26m1 stop
C$ 695
Find Deal
Sat, 12 Oct - Wed, 16 Oct
7:00 a.m. - 5:55 p.m.SEA-YUL
31h 55m3 stops
9:15 p.m. - 8:26 p.m.YUL-SEA
26h 11m2 stops
C$ 752
Find Deal
Sat, 12 Oct - Wed, 16 Oct
7:00 a.m. - 7:13 p.m.SEA-YUL
33h 13m3 stops
10:45 a.m. - 7:35 a.m.YUL-SEA
23h 50m3 stops
C$ 843
Find Deal
Sat, 12 Oct - Wed, 16 Oct
7:00 a.m. - 12:36 a.m.SEA-YUL
14h 36m1 stop
5:00 p.m. - 8:26 p.m.YUL-SEA
30h 26m1 stop
C$ 1,058WestJet
Find Deal
Thu, 10 Oct - Mon, 14 Oct
12:26 a.m. - 11:45 a.m.SEA-YUL
8h 19m1 stop
7:50 a.m. - 10:00 p.m.YUL-SEA
17h 10m1 stop
C$ 1,150American Airlines
Find Deal
Wed, 9 Oct - Mon, 14 Oct
12:26 a.m. - 3:20 p.m.SEA-YUL
11h 54m2 stops
7:50 a.m. - 10:00 p.m.YUL-SEA
17h 10m1 stop
C$ 1,164American Airlines
Find Deal
Wed, 9 Oct - Mon, 14 Oct
7:00 a.m. - 12:36 a.m.SEA-YUL
14h 36m1 stop
5:00 p.m. - 7:35 a.m.YUL-SEA
17h 35m2 stops
C$ 1,285WestJet
Find Deal
Thu, 10 Oct - Mon, 14 Oct
7:40 a.m. - 3:47 p.m.SEA-YUL
5h 07mdirect
1:10 p.m. - 6:21 p.m.YUL-SEA
8h 11m1 stop
C$ 1,523Air Canada
Find Deal
Sat, 12 Oct - Wed, 16 Oct
7:40 a.m. - 3:47 p.m.SEA-YUL
5h 07mdirect
7:30 a.m. - 6:21 p.m.YUL-SEA
13h 51m1 stop
C$ 1,549Air Canada
Find Deal
Thu, 10 Oct - Mon, 14 Oct
7:40 a.m. - 3:47 p.m.SEA-YUL
5h 07mdirect
6:30 p.m. - 9:15 p.m.YUL-SEA
5h 45mdirect
C$ 1,255Air Canada
Find Deal
Mon, 21 Oct - Fri, 25 Oct
7:40 a.m. - 3:47 p.m.SEA-YUL
5h 07mdirect
6:30 p.m. - 9:15 p.m.YUL-SEA
5h 45mdirect
C$ 1,488Air Canada
Find Deal
Fri, 18 Oct - Fri, 25 Oct

Flights from Seattle to Montreal - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Montreal to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Montreal?

The average price of all flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Montreal on a Tuesday and more expensive on a Saturday. On your return trip to Seattle, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is January, where tickets cost C$ 620 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is C$ 858 and C$ 834 respectively.

Can I save money by flying with a layover from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 1,380 on average

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 128 days before departure.

Good to know

Low season

January

High season

June

Cheapest flight

C$ 189
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Seattle to Montreal

When to book flights from Seattle to Montreal

Are your dates flexible? Find out the best times to travel from Seattle to Montreal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Montreal flights

  • What are some layover cities for flights from Seattle to Montreal?

    Several flights from SEA to YUL have layovers en route. Some of the common layover cities include Calgary (YYC) by WestJet and Flair, Washington, D.C. (IAD) by United, Vancouver (YVR) by Air Canada, San Francisco (SFO) by United, Toronto (YYZ) by Air Canada, Los Angeles (LAX) by United, Atlanta (ATL) by Delta, Chicago (ORD) BY United, Minneapolis (MSP) by Delta, and Dallas (DFW) by American.

  • What are the transport options from Montreal Airport to downtown?

    STM 747 Express 747 Bus connects YUL Airport to downtown Montreal and operates a 17-mins interval. Orleans Express Service Aeroport Trudeau Bus connects YUL Airport to downtown Montreal and runs four times daily. Societe de Transport de Montreal 354 Bus connects YUL Airport to downtown Montreal and operates five times daily. Taxis are available on demand on YUL Airport transport ground and link YUL Airport with downtown Montreal.

  • Which airlines offer accessible services from Seattle to Montreal?

    Air Canada can accommodate people with special needs flying from SEA to YUL. They offer accessible services such as booking assistance, wheelchair assistance during boarding, navigation, and disembarking for those with reduced mobility, and priority checking. The airline provides alternative access to information for passengers who are hard of hearing and have low vision, such as closed captioning, braille, and audio descriptions.

  • Can a minor fly unaccompanied from Seattle to Montreal?

    Your minor can travel alone from SEA to YUL unaccompanied at a fee with United Airlines. The airline allows children aged 5 to 14 but restricts connecting flight travels to those aged eight and above. You must accompany your minor for check-in at least 2 hours before departure. You must also provide documents such as the minor’s passport and birth certificate to verify age. You must provide additional documents and information such as your photo ID, contact number, and details of the receiving adult, including name, address, and contact telephone number.

  • What is the cheapest flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport was C$ 139 for a one-way ticket and C$ 294 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Montreal?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Montreal flight route: Air Canada, Lufthansa, United Airlines, Virgin Atlantic, ITA Airways, and Delta.

  • Which aircraft models fly most regularly from Seattle to Montreal?

    The Airbus A220-300 is the aircraft model that flies most regularly on the Seattle to Montreal flight route.

  • Which airline alliances offer flights from Seattle to Montreal?

    Star Alliance is the only airline alliance operating flights between Seattle and Montreal.

  • On which days can I fly direct from Seattle to Montreal?

    You can catch a direct flight from Seattle to Montreal on Monday, Tuesday, Thursday, Friday, Saturday, and Sunday.

  • How does KAYAK find such low prices on flights from Seattle to Montreal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Montreal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Montreal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Montreal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Montreal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 302 or less one-way and C$ 1,272 or less round-trip.
  • You can access unique meals personalized to meet your dietary preferences from Seattle–Tacoma Airport - Seatac (SEA) to Montreal International Airport (YUL) with American. They include child-friendly, vegetarian, gluten- and lactose-free, vegan, and diabetic.
  • Delta Airlines allows you to board with a carry-on bag and a personal item at no additional cost from SEA to YUL. The maximum dimension the airline allows is 17 x 13 x 9 inches for your personal item and 22 x 14 x 9 inches for your carry-on bag.
  • For a fee, you can travel alongside your pet from SEA to YUL with American Airlines. You must enclose your pet in a collapsible soft-sided kennel with maximum dimensions of 18 x 11 x 11 inches. The kennel must be small but comfortable. The combined weight limit for your pet and its carrier must be 20 lb.
  • Consider flying Business- or First-class from SEA to YUL with United Airlines. They offer premium amenities and services for these passengers, including access to their United Club Lounge on the Mezzanine Level at the Concourse of the Airside at SEA Airport and comfortable lie-flat seats.
  • Traveling from SEA to YUL alongside your young one with Delta Air Lines is convenient. It offers family-friendly services such as in-flight kid’s entertainment, priority check-in, and boarding for those with young children.
See more tips

Top airline flying from Seattle to Montreal

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Montreal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Montreal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
Air CanadaOverall score based on 7871 reviews
6.2Food
7.2Boarding
7.7Crew
6.8Entertainment
7.0Comfort
Airline reviews

Flight was over an hour late departing and when we got to Montreal there was no gate and so we had to wait on the tarmac for over an hour!!!!!

2.0 MediocreAnonymous, Oct 2024DEN - YUL
Read more Air Canada reviews

Flight was over an hour late departing and when we got to Montreal there was no gate and so we had to wait on the tarmac for over an hour!!!!!

No service in the main cabin whatsoever! I finally ask for water and was requested to get out of my seat and come back to the flight attendants if I wanted water. 3 hour flight, some bumps, but seat belt sign off for about half the flight.

Normally it is not a good experience except for this time. The plane wasn't packed, the boarding was fast and even the check-in was pretty good.

The Montreal to Barcelona flight was cancelled half hour before boarding. We had to struggle for hours to find an alternative route through a very long route with 6 hours of transit time in Munich. It wasted almost one full day of our long awaited vacation. We are extremely disappointed.

We booked return tickets Montreal-NYC-Montreal, booking references 23V7AC and 23UHNC (2 tickets each, we are a family of 4). The returning flight was cancelled (NYC to Montreal on August 7th AC8645) and we have been proposed flights two days later. Due to personal obligations, we could not wait for the flights that you proposed and had to go back to Montreal by bus that same night. After having canceled our flight, we have been partially compensated with USD 465.86 which cover the costs we had to spend on the bus. Nevertheless, we got a USD 15.00 voucher each but only two vouchers could be used, the other two were rejected at scanning (same shop and same scanner for all 4 vouchers). Consequently, we paid USD 30.00 ourselves, which should have been offered to us. At the end, I cannot even find a e-mail address to which I could send the request for reimbursement of these USD 30.00.

Small plane with no space, old seats, no entertainment, big turbulences

Terrible. Air Canada decided to wait for another flight. Due to the waiting, the weather got worse and connedting flight got cancelled. Air Canada said it was all due to the weather and didn’t pay me for the hotel. Not speaking of 3 hours waiting for my luggage. Never again!

Could not switch flights. No help from check in Four people doing nothing. Two hour wait on telephone but no other flights available. Overall experience sucked.

Boarding was particularly poorly done with disregard for courtesy, professionalism, and efficiency. Think mid 70’s bus station.

Easier to get to the Wi-Fi they should give more snacks and ask if you want more drinks and I think nuts would be better than cookies

Book cheap flights from Seattle to Montreal

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Montreal found on KAYAK in the last 72 hours.
28/10Mon
2 stops
32h 57mSEA-YUL
C$ 189
29/10Tue
2 stops
16h 25mSEA-YUL
C$ 196
14/10Mon
2 stopsWestJet
34h 15mSEA-YUL
C$ 256
15/10Tue
2 stopsWestJet
34h 15mSEA-YUL
C$ 261
5/2Wed
1 stopAir Canada
7h 08mSEA-YUL
C$ 292
29/10Tue
1 stopDelta
11h 17mSEA-YUL
C$ 333
27/10Sun
1 stopAmerican Airlines
13h 14mSEA-YUL
C$ 356
8/11Fri
1 stopAmerican Airlines
12h 22mSEA-YUL
C$ 360
5/2Wed
2 stopsDelta
11h 47mSEA-YUL
C$ 369
23/11Sat
1 stopAir Canada
8h 18mSEA-YUL
C$ 382

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Last minute flights from Seattle to Montreal

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Montreal that are departing in the next 10 days.
12/10Sat
multi-stop
29h 45mSEA-YUL
16/10Wed
multi-stop
26h 11mYUL-SEA
C$ 581
12/10Sat
multi-stop
29h 45mSEA-YUL
16/10Wed
multi-stop
30h 26mYUL-SEA
C$ 695
12/10Sat
multi-stop
31h 55mSEA-YUL
16/10Wed
multi-stop
26h 11mYUL-SEA
C$ 752
12/10Sat
multi-stop
33h 13mSEA-YUL
16/10Wed
multi-stop
23h 50mYUL-SEA
C$ 843
10/10Thu
multi-stopWestJet
14h 36mSEA-YUL
14/10Mon
multi-stopWestJet
30h 26mYUL-SEA
C$ 1,058
9/10Wed
multi-stopAmerican Airlines
8h 19mSEA-YUL
14/10Mon
multi-stopAmerican Airlines
17h 10mYUL-SEA
C$ 1,150
9/10Wed
multi-stopAmerican Airlines
11h 54mSEA-YUL
14/10Mon
multi-stopAmerican Airlines
17h 10mYUL-SEA
C$ 1,164
10/10Thu
multi-stopWestJet
14h 36mSEA-YUL
14/10Mon
multi-stopWestJet
17h 35mYUL-SEA
C$ 1,285
12/10Sat
directAir Canada
5h 07mSEA-YUL
16/10Wed
multi-stopAir Canada
8h 11mYUL-SEA
C$ 1,523
10/10Thu
directAir Canada
5h 07mSEA-YUL
14/10Mon
multi-stopAir Canada
13h 51mYUL-SEA
C$ 1,549

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

Information on your arrival and departure airports