Cheap Flights from Seattle to Montreal

Compare Seattle to Montreal flight deals

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

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Flight deals from Seattle to Montreal

Looking for a cheap last-minute deal or the best return flight from Seattle to Montreal? If you want to travel next month, return fares start from $919. Find the lowest prices on one-way and return tickets right here.

Montreal.$761 per passenger.Departing Sat, 13 Jun, returning Fri, 19 Jun.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 13 Jun, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Fri, 19 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $761, select.

Montreal.$776 per passenger.Departing Mon, 27 Apr, returning Mon, 4 May.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 27 Apr, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Mon, 4 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $776, select.

Montreal.$792 per passenger.Departing Wed, 19 Aug, returning Wed, 26 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Wed, 19 Aug, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Wed, 26 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $792, select.

Montreal.$813 per passenger.Departing Fri, 24 Apr, returning Sun, 26 Apr.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 24 Apr, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sun, 26 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $813, select.

Montreal.$831 per passenger.Departing Sat, 10 Oct, returning Sun, 18 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 10 Oct, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sun, 18 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $831, select.

Montreal.$840 per passenger.Departing Fri, 18 Sep, returning Wed, 23 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 18 Sep, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Wed, 23 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $840, select.

Montreal.$868 per passenger.Departing Sat, 29 Aug, returning Sun, 6 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 29 Aug, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sun, 6 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $868, select.

Montreal.$879 per passenger.Departing Fri, 3 Jul, returning Tue, 14 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 3 Jul, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Tue, 14 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $879, select.

Montreal.$884 per passenger.Departing Tue, 26 May, returning Sat, 6 Jun.Return flight with Air Canada and WestJet.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 26 May, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sat, 6 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $884, select.

Montreal.$915 per passenger.Departing Fri, 26 Jun, returning Wed, 1 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 26 Jun, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Wed, 1 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $915, select.

Montreal.$919 per passenger.Departing Wed, 27 May, returning Sun, 31 May.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Wed, 27 May, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sun, 31 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $919, select.

Montreal.$967 per passenger.Departing Thu, 30 Jul, returning Sun, 2 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Thu, 30 Jul, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sun, 2 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $967, select.

Montreal.$1,041 per passenger.Departing Sun, 8 Nov, returning Sat, 14 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sun, 8 Nov, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Sat, 14 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,041, select.

Montreal.$1,077 per passenger.Departing Tue, 5 Jan, returning Mon, 11 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 5 Jan, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Mon, 11 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,077, select.

Montreal.$1,098 per passenger.Departing Wed, 10 Feb, returning Mon, 15 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 10 Feb, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Mon, 15 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,098, select.

Montreal.$1,102 per passenger.Departing Fri, 11 Dec, returning Thu, 17 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Fri, 11 Dec, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Thu, 17 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,102, select.

Find the cheapest month to fly from Seattle to Montreal

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Montreal flights are currently cheapest in June.

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Alternative Seattle to Montreal routes

Looking for the cheapest, fastest or easiest route from Seattle to Montreal? You could fly into the following airports instead.

Seattle to Montreal: Flight information

The things to know before you go.

Cheapest flight found	$272
Cheapest month to fly	May

Finding cheap flights from Seattle to Montreal: Frequently asked questions

How many airports are there in Montreal?

There are 3 airports in Montreal: Montreal St Hubert, Montreal Pierre Elliott Trudeau and Montreal Mirabel.

How much are return flights from Seattle to Montreal?

The best price we found for a return flight from Seattle to Montreal is $761. 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.

Which airlines fly direct from Seattle to Montreal?

Currently, there are no airlines that fly direct from Seattle to Montreal. But we found flights with one or more stops from $761.

How many flights are there a week from Seattle to Montreal?

As of April 2026, there are no flights flying from Seattle to Montreal.

When is the cheapest time to fly from Seattle to Montreal?

The cheapest month to fly from Seattle to Montreal is usually June.

Which is the cheapest airport to fly into in Montreal?

If you're flying from Seattle, the cheapest airport near Montreal is Montreal Pierre Elliott Trudeau – which is 16.1 km away from the centre of Montreal. We've found flights into this airport from $761.

Which upcoming date is cheapest to fly from Seattle to Montreal on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Montreal on Saturday, 13 June 2026.

Can I get a direct flight from Seattle to Montreal?

No airlines currently offer direct flights between Seattle and Montreal. Most routes have one or more stops.

How can I get the best flight deal from Seattle to Montreal?

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 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.

When is the best time to book flights to Montreal?

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.

What’s the weather like in Montreal?

In April, the average temperature is usually around 5°C. July is typically the warmest month in Montreal, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -17°C. The rainiest month is June.

Which is the cheapest airline to fly from Seattle to Montreal with?

The cheapest airline that flies to Montreal is WestJet .

Flying from Seattle to Montreal: what you need to know

Get your holiday planning started by considering where you'll catch your flight from Seattle to Montreal. Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base Airport (LKE) are Seattle's main airports.
Disembark at Montreal's chief entry point, Montreal-Pierre Elliott Trudeau International Airport (YUL).
Around 5 hours 10 minutes is how long you can expect to be travelling on a direct Seattle to Montreal flight.
Montreal's timezone is UTC-4, which makes Montreal three hours ahead of Seattle.
With three flights a week between the two airports, Seattle-Tacoma International Airport (SEA) to Montreal-Pierre Elliott Trudeau International Airport (YUL) is the busiest route. Hop on the earliest flight from Seattle to Montreal with Air Canada at 07:20. If you prefer to get more out of your day before flying, the last flight from SEA to YUL is with Air Canada at 07:20.
Allow plenty of time to make your Seattle to Montreal flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.
During popular months like July, it's a good idea to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during high season in general.

How to find the cheapest flights from Seattle to Montreal

Book two months before flying. Pricing trends suggest that this is the ideal window for finding cheap Seattle to Montreal flights.
Organise your trip for May. That's the best month for landing an awesome deal on plane tickets from Seattle to Montreal. If your travel dates are flexible, use the 'Whole month' tool to find the cheapest price across every month.
You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as there's a better deal on cheap flights from Seattle to Montreal.
Select your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your Seattle to Montreal flight results by 'Cheapest,' 'Best' or 'Fastest.'

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

Take off from Seattle-Tacoma International Airport (SEA) on a nonstop flight from Seattle to Montreal. From SEA, you can travel directly to Montreal-Pierre Elliott Trudeau International Airport (YUL).
Air Canada is a popular carrier that offers direct Seattle to Montreal plane tickets from SEA.
Consider adding a stopover to potentially save money on your Seattle to Montreal flight. Just deselect 'Direct flights only' when browsing departures from Seattle-Tacoma International Airport. Take a break (and maybe save some cash) by stopping at one of these airports:
- Minneapolis-St. Paul International Airport (MSP)
- Vancouver International Airport (YVR)
- Calgary International Airport (YYC)
The journey from central Seattle to SEA takes around 55 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic conditions.
Looking for a handy hotel near Seattle-Tacoma International Airport? If you're boarding an early flight from Seattle to Montreal, these stays will put you moments from your departure gate:
Seattle-Tacoma International Airport scores top marks for on-time performance. 81.27% of flights that take off from SEA arrive at their destination on time.

Arriving in Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

The distance from Montreal-Pierre Elliott Trudeau International Airport (YUL) to central Montreal is approximately 16 kilometres. It'll take you about 25 minutes to get to the centre driving.
If you're travelling by public transport, expect a journey time of around 45 minutes.
Consider staying in a hotel near YUL if you're coming in on a late flight from Seattle to Montreal. Settle into one of these accommodation options and skip the long transfer:
Pick up a Montreal-Pierre Elliott Trudeau International Airport rental car and discover Montreal and beyond with your own wheels. Avis, Alamo and Routes Car Rentals are top outlets to choose from here.
To get the lowest price, book your vehicle from Montreal-Pierre Elliott Trudeau International Airport around four weeks in advance of your Seattle to Montreal flight.
YUL is located at 975 Romeo Vachon Street North.

St. Hubert Airport (YHU)

Once your flight from Seattle to Montreal has hit the tarmac, you can make your way to the city centre in around 35 minutes by car. Central Montreal is approximately 26 kilometres from St. Hubert Airport (YHU).
The trip will take roughly 1 hour 45 minutes on public transport.
Why wait? A St. Hubert Airport rental car lets you start your journey right away. Find the perfect playlist and hit the highway with a set of wheels from Enterprise or Budget.
Lock in the vehicle you want, not just whatever's left, by securing your ride from YHU ahead of your arrival. You'll also avoid paying more than you need to, especially during busy airport times.

Best time to go to Montreal

It's time to choose your trip dates for your flight from Seattle to Montreal. August is the busiest month for a trip to Montreal. If you like a more peaceful vibe, go in February.
Book a Seattle to Montreal ticket departing in July if you want to visit the city during its warmest month. Expect temperatures in Montreal to range from 14ºC to 28ºC.
January has average temperatures of between -19ºC and -2ºC. Look for cheap flights from Seattle to Montreal around that time if you want to travel in cooler conditions.

More about Montreal

When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Montreal right here. Browse these options after locking in your flight from Seattle to Montreal:
Every great holiday has to include a little sightseeing. Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal are attractions you won't want to skip in Montreal.

Explore more of Canada

Montreal is always a good idea, but there are so many other parts of Canada just waiting to be discovered. About 499 kilometres south-west of Montreal, a visit to Toronto will keep your itinerary busy. Don't miss top attractions like CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.
Around 153 kilometres west of Montreal, Ottawa is another favourite stop in Canada. Experience this destination's highlights firsthand at Parliament Hill, Rideau Canal and National Gallery of Canada.