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

Direct flights offer convenience and save time, but they are not always the cheapest option. Flights with layovers can sometimes be significantly more affordable. Consider your budget and schedule to decide which option suits your travel needs best.

Can flexible travel dates help on Seattle to Montreal flights?

Yes, being flexible with your travel dates can often lead to finding cheaper flights. Prices can vary significantly between different days of the week or even within the same week. Weekday travel, for example, may be less expensive than weekend travel.

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 7 days ago

483 airlines compared

80%+ AI score for best value

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

Today’s best flight deals from Seattle to Montreal

Explore current cheapest deals departing from Seattle to Montreal

2027-02-01 – 2027-02-04
SEA - Montreal
67% AI deal score
$363
$497
Round trip
2026-11-20 – 2026-11-28
SEA - Montreal
69% AI deal score
$354
$501
Round trip
2026-11-28 – 2026-12-11
SEA - Montreal
69% AI deal score
$337
$501
Round trip
2026-11-12 – 2026-12-11
SEA - Montreal
68% AI deal score
$322
$502
Round trip
2026-12-02 – 2026-12-11
SEA - Montreal
70% AI deal score
$386
$502
Round trip
2026-11-24 – 2026-12-11
SEA - Montreal
69% AI deal score
$324
$502
Round trip
2026-12-01 – 2026-12-11
SEA - Montreal
70% AI deal score
$378
$502
Round trip
2026-11-26 – 2026-12-11
SEA - Montreal
69% AI deal score
$331
$502
Round trip
2027-02-02 – 2027-02-08
SEA - Montreal
69% AI deal score
$362
$502
Round trip
2027-01-21 – 2027-02-08
SEA - Montreal
69% AI deal score
$325
$502
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 travel experience that balances duration with the need for connections, given the significant distance.

When looking for cheap flights from Seattle to Montreal, fares typically range from $557–$766, with a median of $654. 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 competitive offers are available if you track prices.

If you are wondering when is the cheapest time to fly from Seattle to Montreal, October stands out as the most affordable month, with a median fare of $547. Other relatively inexpensive months include September, with a median fare of $688, and November, where the median fare is $691.

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. This means you should plan for at least one layover on your journey.

A typical journey from Seattle to Montreal takes approximately 25h 18m including connections. This duration reflects the need for connecting flights, as direct flights from Seattle to Montreal are not commonly found on this route. New deals for this route show up several times a week, so setting up a price alert can help you monitor fare changes effectively.

How much is a round trip from Seattle to Montreal

Regular price: $283 - $572

Prices for flights from Seattle to Montreal are currently within the regular range.

The regular price range for flights from Seattle to Montreal is 283 USD to 572 USD. The current lowest deal is 500 USD with Air Canada, for travel from Nov 12-Dec 2.

now $500

Low $283

High $572

The cheapest time to fly from Seattle to Montreal

The cheapest month to fly from Seattle to Montreal is October, with a median price of $547. The most expensive month is August, with a median price of $2000. Prices are generally lower from September to November.

October

Cheapest

Flights from $547

August

Most Expensive

Flights from $2,000

Aug

Sep

Oct

Nov

Direct flights from Seattle to Montreal

Air Canada

WestJet

Last-minute flights going from Seattle to Montreal

Sun, Nov 1

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

American Airlines

$519

$917

One-way

Sun, Nov 8

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YHU)

Alaska Airlines, Inc.

$495

$681

One-way

Mon, Nov 9

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

WestJet

$352

$589

One-way

Mon, Nov 9

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

Deutsche Luft Hansa

$392

$600

One-way

Mon, Nov 9

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

Deutsche Luft Hansa

$392

$600

One-way

Wed, Nov 11

⌛ Last-Minute

SEA - Montreal

Seattle (SEA) - Montreal (YUL)

Air Canada

$323

$503

One-way

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

5 nights

Apr 14 - Apr 19

$458 → $539

18%

9 nights

Apr 22 - May 1

$456 → $538

18%

6 nights

Apr 22 - Apr 28

$459 → $542

18%

8 nights

Apr 23 - May 1

$457 → $544

19%

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 of $654.

📅 Best time to fly

October is historically cheapest at $547.

Historically, October is the cheapest month to fly from Seattle to Montreal, with a median price of $547.

⏱️ Flight duration

Connecting flights typically take 25h 18m.

Connecting flights from Seattle to Montreal typically have a median duration of 25h 18m.

✈️ Airlines & availability

Connecting flights are dominant for this route.

Connecting flights make up 100% of deals for this route, with a median of 2 stopovers.

🏆 Airline highlight

Air Canada offers many deals.

Air Canada has 91 deals for flights from Seattle to Montreal, more than other airlines.

🎯 Booking tip

Deals appear regularly for this route.

Deals for flights from Seattle to Montreal appear regularly, typically within a 30-day window.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International offers the cheapest flights from Seattle to Montreal.

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

💸 Flights from ~$443

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 ~$445

Airports nearby Montreal used as alternative

Ottawa Macdonald–Cartier International (YOW)

Montreal, Canada

84% AI deal score

$1,484

$1,077

Save $407

WestJet, +1

Business Class

From SEA

Elite

Dec 31

Montreal, Canada

83% AI deal score

$2,033

$1,472

Save $561

Air Canada

Business Class

Frequently Asked Questions About Flights to Montreal

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across various airlines and booking platforms can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, often several weeks or months out, may lead to better prices. However, last-minute deals can sometimes appear, so it's wise to monitor price trends. Mid-week bookings are sometimes associated with lower fares.

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

Related routes

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Flights to Montreal from other cities

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Seattle to Montreal: Overview

Insights for flights from Seattle to Montreal

How much is a round trip from Seattle to Montreal

Regular price: $283 - $572

Prices for flights from Seattle to Montreal are currently within the regular range.

The regular price range for flights from Seattle to Montreal is 283 USD to 572 USD. The current lowest deal is 500 USD with Air Canada, for travel from Nov 12-Dec 2.

now $500

Low $283

High $572

The cheapest time to fly from Seattle to Montreal

October

Cheapest

Flights from $547

August

Most Expensive

Flights from $2,000

Aug

Sep

Oct

Nov