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

Direct flights offer convenience and save time, but they are not always the most budget-friendly choice. Flights with one or more layovers can often be cheaper, depending on the route and airline. Consider your priorities for cost versus travel time when making your decision.

Can flexible travel dates help on Seattle to Montreal flights?

Yes, being flexible with your travel dates can significantly impact the price of your flight. Traveling during off-peak seasons or on weekdays often results in lower fares compared to weekends or holidays. Even shifting your departure or return by a day or two may lead to 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 1 day ago

462 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)

Today’s best flight deals from Seattle to Montreal

Explore current cheapest deals departing from Seattle to Montreal

2026-10-20 – 2026-10-22
SEA - Montreal
85% AI deal score
$393
$297
Round trip
2026-10-20 – 2026-10-23
SEA - Montreal
85% AI deal score
$393
$297
Round trip
2026-10-17 – 2026-10-21
SEA - Montreal
85% AI deal score
$395
$300
Round trip
2026-10-17 – 2026-10-23
SEA - Montreal
84% AI deal score
$379
$300
Round trip
2026-10-17 – 2026-10-22
SEA - Montreal
85% AI deal score
$390
$300
Round trip
2026-10-18 – 2026-10-20
SEA - Montreal
84% AI deal score
$393
$309
Round trip
2026-10-03 – 2026-10-06
SEA - Montreal
85% AI deal score
$410
$313
Round trip
2026-10-16 – 2026-10-21
SEA - Montreal
83% AI deal score
$390
$313
Round trip
2026-10-06 – 2026-10-23
SEA - Montreal
74% AI deal score
$331
$313
Round trip
2026-10-06 – 2026-10-22
SEA - Montreal
75% AI deal score
$335
$313
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. For travelers seeking cheap flights from Seattle to Montreal, prices right now are significantly below the typical level. Fares for this route typically range from $551 to $763, with a median price of $648. Currently, about 14% of recent fares are considered a good price.

If you are wondering when is the cheapest time to fly from Seattle to Montreal, the data indicates that May is the most affordable month, with a median fare of $163. April also offers competitive pricing, with a median fare of $187. Following these, July presents another good option, with a median fare of $210.

For flights from Seattle to Montreal, most itineraries connect at least once, as 0% of recent fares were non-stop. When connections are necessary, the typical number of stopovers is 2. New deals for this route show up several times a week, so keeping an eye on price alerts can be beneficial.

A typical journey from Seattle to Montreal, including connections, takes approximately 8h 30m. This duration reflects the common need for at least one stopover on this route, as direct flights are not a common offering.

How much is a round trip from Seattle to Montreal

Regular price: $333 - $595

Prices are currently below the regular range.

The regular price range for flights from Seattle to Montreal is $333 to $595. The current lowest deal is $300 with WestJet for travel from Oct 17-Oct 21.

now $300

Low $333

High $595

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

Air Canada

Alaska Airlines, Inc.

Last-minute flights going from Seattle to Montreal

Thu, Sep 24

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$489

$486

One-way

Fri, Sep 25

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$484

$390

One-way

Fri, Sep 25

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$483

$405

One-way

Sat, Sep 26

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$371

$384

One-way

Sun, Sep 27

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$472

$351

One-way

Mon, Sep 28

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$365

$384

One-way

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

2 nights

Sep 27 - Sep 29

$464 → $353

24%

3 nights

Oct 20 - Oct 23

$393 → $297

24%

4 nights

Oct 17 - Oct 21

$393 → $300

24%

3 nights

Oct 17 - Oct 20

$393 → $300

24%

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 14% considered good deals.

📅 Best time to fly

May is historically the cheapest month to fly

Historically, May is the cheapest month to fly from Seattle to Montreal, with a median price of $163.

⏱️ Flight duration

Connecting flights average 8h 30m

Connecting flights from Seattle to Montreal typically average 8 hours and 30 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant on this route, with a median of 2 stopovers.

🏆 Airline highlight

WestJet offers many deals

WestJet has offered 90 deals recently, 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 save.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a major airport for flights from Seattle to Montreal.

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

💸 Flights from ~$321

Montreal main airports to arrive at

Montréal–Pierre Elliott Trudeau International (YUL)

Cheapest

Montréal–Pierre Elliott Trudeau International Airport is a primary arrival option for flights to Montreal.

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

💸 Flights from ~$316

Airports nearby Montreal used as alternative

Ottawa Macdonald–Cartier International (YOW)

Cheapest

Ottawa Macdonald–Cartier International is a major international hub within the same country, avoiding border crossings.

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

💸 Flights from ~$282

Business & First Class Flight Deals to Montreal

$649

Save $609

WestJet

Business Class

Frequently Asked Questions About Flights to Montreal

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison sites can help you compare prices across different airlines and booking platforms. Looking into flights with layovers may also sometimes present lower fares than direct options.

Booking flights in advance often provides more competitive prices, though the ideal booking window can vary. Prices may fluctuate, so monitoring fares over time can help you identify a good deal. Mid-week bookings are sometimes associated with better prices.

Comparing nearby airports at both your origin and destination can sometimes uncover additional flight options or lower prices. While it may require extra travel time to and from these airports, the potential savings could be significant. Always factor in ground transportation costs and convenience.

Related routes

More routes from Seattle

Flights from Seattle to Addis Ababa Flights from Seattle to Adelaide Flights from Seattle to Ahmedabad Flights from Seattle to Albany Flights from Seattle to Albuquerque Flights from Seattle to Amsterdam Flights from Seattle to Anchorage Flights from Seattle to Auckland Flights from Seattle to Calgary Flights from Seattle to Toronto Flights from Seattle to Vancouver Flights from Seattle to Zürich

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: $333 - $595

Prices are currently below the regular range.

The regular price range for flights from Seattle to Montreal is $333 to $595. The current lowest deal is $300 with WestJet for travel from Oct 17-Oct 21.

now $300

Low $333

High $595

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