Question 1

What are the cheapest airlines flying from Seattle to Montreal round-trip?

Accepted Answer

Cheapflights users have booked flights from Seattle to Montreal round-trip from C$ 481. Other airlines that can offer you cheap pricing are Air Canada, from C$ 543, and United Airlines, from C$ 667. WestJet is 42% cheaper than the average price of flights available within the next 90 days to this destination.

Question 2

What are the cheapest airlines to fly from Seattle to Montreal one-way?

Accepted Answer

The cheapest airlines for a one-way flight from Seattle to Montreal are WestJet (C$ 228), Sun Country Air (C$ 264), and Air Canada (C$ 276).

Question 3

How far ahead should I book a flight from Seattle to Montreal?

Accepted Answer

Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Montreal. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 4

What is the cheapest month to book a flight from Seattle to Montreal?

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from Seattle to Montreal (average of C$ 241). Flying from Seattle to Montreal in April is currently the most expensive (average of C$ 316). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Seattle to Montreal?

Accepted Answer

Travelers seeking maximum savings on their Seattle to Montreal flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Montreal ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal when rainfall is around 64.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Montreal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Question 8

What are the cheapest flights from Seattle to Montreal?

Accepted Answer

On average you can expect to pay C$ 492 for a flight from Seattle to Montreal. The cheapest flight overall is C$ 219 while the most popular route, (Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at C$ 484.

Question 9

What is the cheapest day to fly round-trip from Seattle to Montreal?

Accepted Answer

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Montreal. Check prices with Cheapflights to find a great deal for your trip.

Question 10

How far in advance should I book a flight from Seattle to Montreal?

Accepted Answer

Travellers have found it’s best to book a flight 49 days in advance to save up to 178% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 49 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Montreal 1-2 weeks in advance for as low as C$ 755, or C$ 1,144 for flights within the next 24 hours.

Question 11

What is the cheapest month to fly from Seattle to Montreal?

Accepted Answer

The best pricing can be found in the month of May. Prices to Montreal from Seattle average C$ 833. You can even find prices in May for less than C$ 833, as users have found deals to Montreal from as low as C$ 327. The month of February appears to be one of the more expensive times to travel to Montreal from Seattle. Flying in the targeted month can save you up to 30%.

Question 12

What is the cheapest time of day to fly from SEA to YMQ?

Accepted Answer

When flying from Seattle to Montreal, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 75% versus a flight in the morning.

Question 13

What airport do you fly from for flights from Seattle to Montreal?

Accepted Answer

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Montreal. On average, Seattle/Tacoma Intl has 1 outbound flight to Montreal per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

Question 14

Can I find deals for flights from Seattle to Montreal that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Seattle to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 15

How can I find direct flights from Seattle to Montreal?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Montreal.

Question 16

Can I find deals for business class flights from Seattle to Montreal?

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 17

How does Cheapflights help users find flights from Seattle to Montreal?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Montreal. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 18

Why should you use Cheapflights to find cheap flight tickets from Seattle to Montreal?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Montreal from Seattle.

Question 19

Can Cheapflights find flights from Seattle to Montreal with no change fees?

Accepted Answer

Need flexible booking options for your flight to Montreal from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 20

Can Cheapflights notify me if prices for flights from Seattle to Montreal become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Seattle to Montreal and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	C$ 481
One-way from	C$ 226
Popular in	February
Cheapest in	May
Average price	C$ 768
Good round-trip deal	C$ 535 or less
Good one-way deal	C$ 287 or less

Cheap flights from Seattle to Montreal from C$ 226

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal are usually found in May or September, booked 48 days in advance, depart on a Wednesday or Friday and return on a Friday

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Cheapest flights from Seattle to MontrealExplore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Explore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Montreal that are best for you.

Best time to book a flight from Seattle to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Montreal

How far ahead should I book a flight from Seattle to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Montreal. Price data was last updated on 9 June 2025.

What is the cheapest month to book a flight from Seattle to Montreal?

What is the cheapest time of day to fly from SEA to YMQ?

Find hourly flight availability from Seattle to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

Rainfall in Montreal by month

Plan your trip to Montreal by taking into account the average rainfall totals by month.

Temperature in Montreal by month

Plan your trip to Montreal by taking into account the average temperature totals by month.

Reviews of airlines servicing Montreal

See what other customers who have flown with Delta, United Airlines and American Airlines from Seattle to Montreal have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to Montreal?

What are the cheapest airlines flying from Seattle to Montreal round-trip?

What are the cheapest airlines to fly from Seattle to Montreal one-way?

What are the cheapest flights from Seattle to Montreal?

Can I find deals for flights from Seattle to Montreal that include hotel bookings?

How can I find direct flights from Seattle to Montreal?

Can I find deals for business class flights from Seattle to Montreal?

What is the cheapest month to book a flight from Seattle to Montreal?

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Alternative routes for Seattle to Montreal

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How does Cheapflights help users find flights from Seattle to Montreal?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Montreal?

Can Cheapflights find flights from Seattle to Montreal with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Montreal become cheaper?

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Cheapest flights from Seattle to Montreal
Explore the most affordable flight options available from Seattle to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.