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YUL - SEA

Find cheap flights from Montreal to Seattle from $213

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Seattle departing on 5/14. 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
Sun 5/26
Sun 6/2

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Seattle, 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 Montreal to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 44,335,567 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:00 am - 12:56 pmYUL-SEA
8h 56m1 stop
7:00 am - 8:15 pmSEA-YUL
10h 15m2 stops
$365WestJet
Find Deal
Thu, Jul 18 - Sun, Jul 21
7:00 am - 12:56 pmYUL-SEA
8h 56m1 stop
7:00 am - 8:15 pmSEA-YUL
10h 15m2 stops
$381WestJet
Find Deal
Thu, Aug 29 - Mon, Sep 2
7:30 am - 2:34 pmYUL-SEA
10h 04m1 stop
1:10 pm - 12:37 amSEA-YUL
8h 27m1 stop
$389Air Canada
Find Deal
Tue, Jul 9 - Wed, Jul 24
6:45 pm - 9:31 pmYUL-SEA
5h 46mnonstop
7:40 am - 3:56 pmSEA-YUL
5h 16mnonstop
$392Air Canada
Find Deal
Mon, May 6 - Thu, May 9
6:45 pm - 9:31 pmYUL-SEA
5h 46mnonstop
11:38 pm - 12:19 pmSEA-YUL
9h 41m1 stop
$401United Airlines
Find Deal
Mon, May 6 - Thu, May 9
3:47 pm - 9:17 amYUL-SEA
20h 30m1 stop
11:43 pm - 1:55 pmSEA-YUL
11h 12m1 stop
$402American Airlines
Find Deal
Thu, May 9 - Fri, May 10
6:45 pm - 9:31 pmYUL-SEA
5h 46mnonstop
11:42 am - 7:10 amSEA-YUL
16h 28m1 stop
$406United Airlines
Find Deal
Sat, May 11 - Tue, May 28
7:29 am - 9:56 pmYUL-SEA
17h 27m1 stop
10:05 pm - 1:55 pmSEA-YUL
12h 50m1 stop
$409American Airlines
Find Deal
Mon, May 6 - Fri, May 10
12:00 pm - 7:40 pmYUL-SEA
10h 40m1 stop
10:56 pm - 11:05 amSEA-YUL
9h 09m1 stop
$411Delta
Find Deal
Tue, May 7 - Tue, May 28
6:00 am - 3:35 pmYUL-SEA
12h 35m2 stops
7:37 pm - 11:05 amSEA-YUL
12h 28m2 stops
$426Delta
Find Deal
Sat, May 25 - Sat, Jun 1

Flights from Montreal to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Montreal to Seattle 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 Montreal to Seattle?

The average price of all flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.
For Montreal to Seattle, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Seattle back to Montreal, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle, 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle is January, where tickets cost $408 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $588 and $552 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle, 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 75 days before departure.

Which airlines provide the cheapest flights from Montreal to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Montreal to Seattle were found on WestJet ($365) and Air Canada ($389). WestJet proposed the cheapest one-way flight at $220.

Which airlines fly non-stop between Montreal Pierre Elliott Trudeau Intl Airport and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle.
There is just one airline that flies from Montreal Pierre Elliott Trudeau Intl Airport to Seattle direct and that is Air Canada. The best one-way deal found from Air Canada for the route is $385.

How many flights are there between Montreal Pierre Elliott Trudeau Intl Airport and Seattle per day?

There is a maximum of 1 nonstop flight a day that takes off from Montreal Pierre Elliott Trudeau Intl Airport and lands in Seattle, with an average flight time of 5h 46m. The most common departure time is 6:00 pm and most flights take off in the evening. Each week, there are 6 flights.

Which cabin class options are there for flights between Montreal Pierre Elliott Trudeau Intl Airport and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Montreal to Seattle take?

Direct flights take on average 5h 45m to travel the 2,276 miles between Montreal and Seattle.

What’s the earliest departure time from Montreal to Seattle?

Early birds can take the earliest flight from Montreal Pierre Elliott Trudeau Intl Airport at 6:30 pm and will be landing in Seattle at 9:16 pm.

What’s the latest departure time from Montreal to Seattle?

If you prefer to fly at night, the latest flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle jets off at 6:45 pm and lands at 9:31 pm.

Good to know

Low season

February

High season

July

Cheapest flight

$213
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 8% increase in price.
Flight from Montreal to Seattle

When to book flights from Montreal to Seattle

Are your dates flexible? Find out the best times to travel from Montreal to Seattle 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 Montreal to Seattle flights

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

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle was $213 for a one-way ticket and $365 for a round-trip.

  • Do I need a passport to fly between Montreal and Seattle?

    A passport is required to fly from Montreal to Seattle.

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

    Only Air Canada offers inflight Wi-Fi service on the Montreal to Seattle flight route.

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

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

  • Which airline alliances offer flights from Montreal to Seattle?

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

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

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

  • Which is the best airline for flights from Montreal to Seattle, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Seattle are Delta and United Airlines. With an average price for the route of $429 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $487 and an overall rating of 7.4.

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

    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 Montreal to Seattle.

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

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

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

    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 Seattle with an airline and back to Montreal with another airline. Booking your flights between Montreal and SEA can sometimes prove cheaper using this method.

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

    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 Seattle from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from YUL to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $239 or less one-way and $437 or less round-trip.

Prefer to fly non-stop from Montreal to Seattle?

Find which airlines fly direct from Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl

Monday

Air Canada, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, United Airlines

Air Canada, United Airlines

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, United Airlines

Air Canada, United Airlines

Sunday

Air Canada, United Airlines

Air Canada, United Airlines

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, United Airlines

Air Canada, United Airlines

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, United Airlines

Air Canada, United Airlines

Sunday

Air Canada, United Airlines

Air Canada, United Airlines

See more direct flights
See more direct flights

Top 4 airlines serving from Montreal to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Seattle. 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 Montreal to Seattle? 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.
8.0
DeltaOverall score based on 10966 reviews
8.2boarding
8.6crew
8.0entertainment
7.4food
7.9comfort
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

Leg room was lacking. Legs crammed into seat in front.

T hey did a great job. Flight was on time .

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

The flight I was connecting with waited for me even though my 1st flight was late. I really appreciated that.

The seat is too hard and my back and bottom are having servers pain

There was no lounge for passengers waiting before boarding the aircraft at F65, so passengers are just sitting on the floor or just spread everywhere the premises before boarding.

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

Both flights yesterday, experienced hard landings. Harder than I’ve ever felt before. Im hopeful there was weather involved and not pilot error. Other than the landing, the flight was quite good~

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

A disaster, I lost my connection due to overcrowding at the Miami airport, having a 3-hour layover and the airline did nothing to reboard me on time and I had to sleep on the floor for 18 hours.

The food has never improved. It will never improve. But when I'm boarding a flight in priority boarding and I've spent 10 hours inside the security area of the airport and I get "randomly" selected for additional screening as I board the plane when the flight has already been delayed, and I work as a military contractor that has been issued visas direct from JMOD, I find it ridiculous. I would never recommend anyone to use AA on international flights. JAL is a better airline with older planes. The flight attendants on international hauls on American also have a chip on their shoulder and really dont deliver the same level of service code share partners do.

The flight was 90 minutes long and the stewardesses were extremely slow. I was in row 16 and they did not serve us drinks until we were descending for landing in a 90 minute flight. Unacceptably slow and at least 10 rows (20 to 31) did not receive any drinks or snacks for the entire duration of the flight because of the slowness of the stewardesses. There is no rationale to delay beverage service to brew coffee for a flight at six p m.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

As is pretty much the norm with Air Canada now, we left late from the gate (45 minutes late). This is my 12th flight with AC in the last 12 months and 10 of those flights were either late or cancelled. AC essentially has a monopoly in Canada so they have carte blanche to charge exorbitant rates now and give poor service, with no repercussions.

When we got to the airport for our flight from Chicago to Montreal which was scheduled for 2.00 p.m. they had no record of it and booked us on a flight at 3.30 very disappointing . We also had to pay 50.00 each for a seat. All things considered ,I will never book thru Kayak again. Next time I will only book directly thru Air Canada no second party booking Sue

They did not have any meal options left on the menu. Only snacks.

My flight has been canceled and I had to cancel entire trip.

Poor communication, when they chose to change my airlines to Alaska when entering back in the US. Even gate agents were confused.

No food for a 6 hours flight! Plus very expensive to buy ! Sit uncomfortable! Awful!!!

There was no food on this flight. We had less than 1/3 full plane and were not allowed to spread out. Staff gave the story of the plane had to have all of us up front for 'balance.' Total bs.

There were changes to my flight with many email and very difficult to keep up with details of changes. I consulted Air Canada website that said I was to depart Casablanca at 9:35 but when I got to airport that take off time was delayed by 2 hours. That's 2 hours at an airport instead of bed. I don't understand why Air Canada website didn't show the change in take off like they showed the change in transfer. Do better.

I was delayed from Montreal to Tokyo for 3 hours and they didn't compensate anything

Book cheap flights from Montreal to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Montreal to Seattle found on KAYAK in the last 72 hours.
5/14Tue
2 stops
21h 00mYUL-SEA
$213
7/29Mon
1 stopWestJet
8h 56mYUL-SEA
$220
5/9Thu
nonstopAir Canada
5h 46mYUL-SEA
$221
5/9Thu
1 stopAmerican Airlines
11h 01mYUL-SEA
$226
6/3Mon
1 stopAmerican Airlines
20h 30mYUL-SEA
$227
5/15Wed
nonstopAir Canada
5h 46mYUL-SEA
$230
8/31Sat
2 stopsUnited Airlines
19h 28mYUL-SEA
$231
6/22Sat
1 stopDelta
14h 13mYUL-SEA
$234
9/13Fri
nonstopUnited Airlines
5h 45mYUL-SEA
$248
5/25Sat
2 stopsDelta
12h 35mYUL-SEA
$254

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Montreal - Seattle Flights

Departure:

Montreal (YUL)Canada

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Montreal

Cabin classes:

$316