Are direct flights from Seattle to Montreal always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers, but they are not always the cheapest option. Flights with one or more connections can sometimes be significantly more affordable. Consider your budget and time constraints when deciding between direct and connecting flights.

Can flexible travel dates help on Seattle to Montreal flights?

Yes, having flexible travel dates can often lead to finding cheaper flights. Prices for airfare can vary significantly depending on the day of the week, time of year, and specific holidays. Adjusting your departure or return by a few days may result in notable savings.

What extra costs should I check before booking Seattle to Montreal flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

Flights From Seattle

To Montreal

Cheap Flights from Seattle to Montreal

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

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

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seattle to Montreal

Explore current cheapest deals departing from Seattle to Montreal

2026-11-04 – 2026-11-07
SEA - Montreal
72% AI deal score
$390
$388
Round trip
2026-10-01 – 2026-10-05
SEA - Montreal
72% AI deal score
$393
$389
Round trip
2026-09-28 – 2026-10-15
SEA - Montreal
71% AI deal score
$360
$389
Round trip
2026-09-24 – 2026-10-15
SEA - Montreal
71% AI deal score
$359
$389
Round trip
2026-09-30 – 2026-10-15
SEA - Montreal
72% AI deal score
$363
$389
Round trip
2026-10-06 – 2026-10-09
SEA - Montreal
72% AI deal score
$393
$390
Round trip
2026-10-07 – 2026-10-15
SEA - Montreal
71% AI deal score
$369
$393
Round trip
2026-10-10 – 2026-10-17
SEA - Montreal
72% AI deal score
$383
$396
Round trip
2026-09-25 – 2026-09-28
SEA - Montreal
73% AI deal score
$410
$400
Round trip
2026-09-16 – 2026-09-19
SEA - Montreal
72% AI deal score
$407
$406
Round trip

Seattle to Montreal: Overview

Insights for flights from Seattle to Montreal

The journey from Seattle to Montreal covers a distance of 3666 kilometers, classifying it as a medium-haul route. This means you can expect a significant travel duration, often involving connections, to reach your destination.

For those seeking cheap flights from Seattle to Montreal, fares typically range from $551–$763, with a median of $648. Right now, current fares are significantly below the typical level. Approximately 14% of recent fares on this route were classified as a good price, indicating that finding a lower-than-average fare is possible but not extremely common. New deals show up several times a week, so consistent monitoring can be beneficial.

When is the cheapest time to fly from Seattle to Montreal? The data indicates that May is typically the most affordable month, with a median fare of $163. Following closely, April also offers competitive prices, with a median fare of $187. July presents another relatively inexpensive option, with a median fare of $210.

Most itineraries for flights from Seattle to Montreal connect at least once. In fact, 0% of recent fares were non-stop. For the majority of connecting itineraries, you can expect to make 2 stopovers to reach Montreal from Seattle.

How long is the flight from Seattle to Montreal? A typical journey, including connections, takes approximately 8h 30m. This duration reflects the need for connecting flights, as direct flights from Seattle to Montreal are not common on this route.

How much is a round trip from Seattle to Montreal

Regular price: $331 - $608

Prices are currently within the regular range.

Regular prices for flights from Seattle to Montreal typically range from $331 to $608. The current lowest deal is $377 with Frontier Airlines for travel from Sep 14-Sep 21.

now $377

Low $331

High $608

The cheapest time to fly from Seattle to Montreal

The cheapest month to fly from Seattle to Montreal is May, with a median price of $127. The most expensive month is August, with a median price of $1059. Generally, prices are lower from January to December.

May

Cheapest

Flights from $127

August

Most Expensive

Flights from $1,059

Jan

May

Jun

Jul

Aug

Oct

Nov

Dec

Direct flights from Seattle to Montreal

WestJet

Frontier Airlines

Deutsche Luft Hansa

United Airlines

Last-minute flights going from Seattle to Montreal

Mon, Aug 3

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

Air Canada

$543

$540

One-way

Thu, Aug 6

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$521

$452

One-way

Fri, Aug 7

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$482

$411

One-way

Fri, Aug 7

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$431

$416

One-way

Sat, Aug 8

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$509

$441

One-way

Sun, Aug 9

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$482

$441

One-way

Biggest price drops on these dates for flights from Seattle to Montreal

5 nights

Aug 7 - Aug 12

$482 → $411

15%

3 nights

Aug 6 - Aug 9

$521 → $452

13%

2 nights

Aug 8 - Aug 10

$509 → $441

13%

10 nights

Sep 20 - Sep 30

$482 → $417

13%

Popular Airports to fly from Seattle to Montreal

Seattle - Montreal route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Seattle to Montreal are below the typical level, with a median price of $389.

📅 Best time to fly

Fly in May for the best prices

Historically, May offers the lowest median price at $127, making it the cheapest month to fly.

⏱️ Flight duration

Connecting flights average 8h 30m

Flights from Seattle to Montreal typically involve connections, with a median duration of 8h 30m.

✈️ Airlines & availability

Connecting flights are dominant

This route is connecting-dominant, with a median of 2 stopovers for available deals.

🏆 Airline highlight

WestJet offers many direct deals

WestJet has 97 direct deals, making it a frequent option for this route.

🎯 Booking tip

Deals appear regularly

Deals for flights from Seattle to Montreal appear regularly, offering frequent opportunities to book.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a convenient option for flights from Seattle to Montreal.

📍 ~18 km from Seattle city center (reachable by car or train).

💸 Flights from ~$399

Montreal main airports to arrive at

Montréal–Pierre Elliott Trudeau International (YUL)

Cheapest

Montréal–Pierre Elliott Trudeau International Airport is a primary gateway to Montreal from Seattle.

📍 ~14 km from city center (reachable by car)

💸 Flights from ~$399

Airports nearby Montreal used as alternative

Ottawa Macdonald–Cartier International (YOW)

Consider this major international hub within Canada to avoid international border crossing for Montreal residents.

📍 ~160 km from Montreal (approximately a 2-hour drive)

💸 Flights from ~$409

Business & First Class Flight Deals to Montreal

91% AI deal score

$1,383

$761

Save $622

Frequently Asked Questions About Flights to Montreal

Finding affordable flights often involves comparing prices across various airlines and booking sites. Being flexible with your travel dates and considering different times of the year can also help uncover better deals. Setting up price alerts may notify you when fares drop.

Booking flights in advance, often several weeks or months before your intended departure, can sometimes result in lower prices. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday bookings might also offer different pricing.

Comparing nearby airports at both your origin and destination can sometimes reveal more economical flight options. While it may add to your ground travel time, the potential savings on airfare can be significant. Always factor in the cost and convenience of transportation to and from alternative airports.

Related routes

More routes from Seattle

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Flights to Montreal from other cities

Flights from Bangkok to Montreal Flights from Calgary to Montreal Flights from Charlottetown to Montreal Flights from Dubai to Montreal Flights from Edmonton to Montreal Flights from Halifax to Montreal Flights from Moncton to Montreal Flights from New Delhi to Montreal Flights from Toronto to Montreal Flights from Vancouver to Montreal Flights from Victoria to Montreal Flights from Winnipeg to Montreal

Seattle to Montreal: Overview

Insights for flights from Seattle to Montreal

How much is a round trip from Seattle to Montreal

Regular price: $331 - $608

Prices are currently within the regular range.

Regular prices for flights from Seattle to Montreal typically range from $331 to $608. The current lowest deal is $377 with Frontier Airlines for travel from Sep 14-Sep 21.

now $377

Low $331

High $608

The cheapest time to fly from Seattle to Montreal

May

Cheapest

Flights from $127

August

Most Expensive

Flights from $1,059

Jan

May

Jun

Jul

Aug

Oct

Nov

Dec