Cheap Flights from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau

Travellers and cabin class

Compare Seattle / Tacoma International to Montreal Pierre Elliott Trudeau flight deals

Find the cheapest month or even day of the year to fly to Montreal Pierre Elliott Trudeau

Book the best Montreal Pierre Elliott Trudeau fare with no extra fees

Flight deals from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Montreal Pierre Elliott Trudeau flights are currently cheapest in July.

Direct flights from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau

Seattle / Tacoma International to Montreal Pierre Elliott Trudeau: Alternative routes

Compare routes from Seattle / Tacoma International to Montreal below. You may find an airport to fly into that's cheaper, faster, or easier than Montreal Pierre Elliott Trudeau.

Seattle to Montreal: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 679
Cheapest month to flyJuly
Average flight time5 hrs, 11 mins
Most popular airlineAir Canada
Average flights per week16

Finding cheap flights from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau is ر.ق.‏ 1,405. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 11 minutes is the average flight time from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau.
Air Canada and United fly direct from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau.
As of June 2025, there are 16 flights per week flying from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau.
The cheapest month to fly from Seattle / Tacoma International to Montreal Pierre Elliott Trudeau is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Montreal Pierre Elliott Trudeau Airport on Thursday, 25 September 2025.
Yes – the average flight time is 5 hours and 11 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Montreal Pierre Elliott Trudeau but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Montreal is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Air Canada offer the cheapest flight tickets to Montreal Pierre Elliott Trudeau.

Flying from Seattle-Tacoma International Airport (SEA) to Montreal-Pierre Elliott Trudeau International Airport (YUL): what you need to know

  • Book a direct flight from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport and you'll be travelling for an average of 5 hours 10 minutes.

  • The timezone in Montreal is UTC-4, which is three hours ahead of Seattle.

  • Flights from SEA to YUL start from 07:40 — the earliest with Air Canada. The latest departure is at 09:45 with Air Canada. Overall, you can choose from eight weekly Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport flights.

  • Your SEA to YUL flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Travelling during a peak time like July? School holidays and other high seasons can mean longer queues and delays at security. Play things extra safe and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Getting to Montreal (and then discovering more of Canada!) is a breeze with Air Canada. This popular airline has direct flights from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport.

  • Most travellers choose to travel with Air Canada on this route.

  • Consider adding a stopover when booking your ticket from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport. Simply uncheck 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Check out these options between SEA and YUL:

    • Vancouver International Airport

    • Calgary International Airport

    • Minneapolis-St. Paul International Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • Currently, ر.ق.‏ 679 is the lowest price we've seen for a one-way Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport flight. The best price for a return plane ticket is ر.ق.‏ 1,405. Remember that fares can change due to demand at the time of booking.

  • Book six months before your departure date. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from SEA to YUL.

  • The cheapest month for flights from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have flexible dates.

  • Save time looking for cheap flights from SEA to YUL by creating a Price Alert. You'll get an email or notification on the app when a special offer becomes available.

  • Pick your ideal departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport maintains a solid on-time record, so you're less likely to experience disruptions. Departures from SEA arrive at their destination as scheduled 81.27% of the time.

  • Seattle-Tacoma International Airport is about 23 kilometres from central Seattle. If you're driving, catching a cab or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on the traffic.

  • The journey when using public transport will take about 55 minutes.

  • Get your travels off to a relaxed start by staying near SEA. Whether you have an early flight from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport or just don't want to be rushed, these stays are the answer:

Arriving at Montreal-Pierre Elliott Trudeau International Airport (YUL)

Getting from Montreal-Pierre Elliott Trudeau International Airport (YUL) to central Montreal

  • YUL is located at 975 Romeo Vachon Street North.

  • From Montreal-Pierre Elliott Trudeau International Airport, Montreal is approximately 26 kilometres away. It takes around 25 minutes to reach the centre driving.

  • Travelling to the centre by public transport takes roughly 2 hours 15 minutes.

When to fly to Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • August is the busiest month for flights from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport. To avoid the crowds, travel to Montreal in February.

  • Before locking in your flight from Seattle-Tacoma International Airport to Montreal-Pierre Elliott Trudeau International Airport, consider the kind of weather you enjoy. July is the warmest month in Montreal, with temperatures ranging from 14ºC to 28ºC.

  • Look for cheap tickets from SEA to YUL in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between -19ºC and -2ºC on average.

Explore more of Canada

  • You've visited Montreal, now it's time to explore more of Canada. Travel around 499 kilometres south-west to Toronto to tick off its must-visit sights. From CN Tower to Royal Ontario Museum and Go Tours Canada - Distillery District, you'll have a full itinerary ahead.

  • Around 153 kilometres west of Montreal, Ottawa is another essential stop in Canada. Get a taste of what this destination has to offer at Parliament Hill, Rideau Canal and National Gallery of Canada.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.