C$ 165 Find Cheap Flights from Seattle to Montreal – Compare and Save

Among airlines operating Seattle to Montreal Pierre Elliott Trudeau Intl Airport flights:

• United Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Montreal Pierre Elliott Trudeau Intl (YUL).

Here are some options for this route, based on selected ticket types and cabin classes:

• Air Canada: a cabin bag in Economy Class class
• United Airlines: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy Class is available on flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 596 round-trip via Calgary (YYC), compared to C$ 987 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 91–C$ 91 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 787-9 Dreamliner family is used most often on this route, operated mainly by Virgin Atlantic and Alaska Airlines. Other aircraft seen on the route include Airbus A330-300 variants.

One-stop flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport most commonly connect through:

• Vancouver Intl (YVR) – 47% of one-stop connections
• Toronto Pearson Intl (YYZ) – 23% of one-stop connections
• Calgary (YYC) – 15% of one-stop connections
• Chicago O'Hare Intl (ORD) – 10% of one-stop connections

Vancouver Intl (YVR) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 23% on the Seattle to Montreal Pierre Elliott Trudeau Intl Airport route. Wednesday is the cheapest departure day at C$ 799 round-trip on average, while Monday is the most expensive at C$ 1,032, a difference of C$ 233. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Some of the most popular sights in Montreal Pierre Elliott Trudeau Intl Airport are Centre Bell, Parc Jean-Drapeau, and Central Station Montreal. These are among the most viewed places in Montreal Pierre Elliott Trudeau Intl Airport on KAYAK.

Last-minute fares on this route – booked within 2 weeks of departure – run 53% above the route average of C$ 929. Book 23 weeks before departure for the lowest fares.

A direct flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport takes 0h 00m, covering 5,895 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 421 to C$ 3,362. That means the highest observed fare was about 8x higher than the lowest one.

One-way fares from Seattle to Montreal Pierre Elliott Trudeau Intl Airport are currently lower than usual. Average one-way flight prices are about C$ 216, which is 49% below the typical average for this route.

Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 7h 53m, compared with 8h 21m via Toronto Pearson Intl (YYZ) and 8h 23m via Vancouver Intl (YVR).

Montreal Pierre Elliott Trudeau Intl Airport is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Montreal Pierre Elliott Trudeau Intl Airport (YUL) hosts 5 major car rental companies, with daily rates starting from around C$ 17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Alamo
• Thrifty
• Hertz
• Avis

Round-trip flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport range from C$ 755 to C$ 1,142, with an average of C$ 929 over the past 12 months. Anything below C$ 755 counts as a good deal.