C$ 349 Find Cheap Flights from Montreal to Seattle – Compare and Save

Three cabin classes are available on flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle:

• Economy Class
• Business Class
• First Class

A direct flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle takes 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.

Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle range from C$ 598 to C$ 892, with an average of C$ 730 over the past 12 months. Anything below C$ 598 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 48% above the C$ 730 route average. Book 16 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 586 round-trip via Washington, D.C. Dulles Intl (IAD), compared to C$ 733 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 35–C$ 35 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 606 to C$ 2,387. That means the highest observed fare was about 4x higher than the lowest one.

Air Canada is the only airline on the Montreal Pierre Elliott Trudeau Intl Airport to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Montreal Pierre Elliott Trudeau Intl Airport to Seattle are currently lower than usual. Average one-way flight prices are about C$ 387, which is 12% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include:

• Europcar
• Fox
• Thrifty
• Budget
• Dollar

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

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

• Vancouver Intl (YVR) – 32% of one-stop connections
• Toronto Pearson Intl (YYZ) – 30% of one-stop connections
• Calgary (YYC) – 23% of one-stop connections
• Chicago O'Hare Intl (ORD) – 6% of one-stop connections

Yes. Flexible dates can save you up to 7% on flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle. Thursday is the cheapest departure day at C$ 705 round-trip on average, while Wednesday is the most expensive at C$ 751, a difference of C$ 47.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 8h 17m, compared with 8h 47m via Vancouver Intl (YVR) and 9h via Toronto Pearson Intl (YYZ).

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

Some of the most popular sights in Seattle are Lumen Field, Climate Pledge Arena, and T-Mobile Park. These are among the most viewed places in Seattle on KAYAK.

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

• Air Canada: offers extra legroom; offers free seat selection
• United Airlines: offers free seat selection

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

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

• Air Canada: a carry-on bag and a checked bag in Economy Class
• United Airlines: a cabin bag in Economy Class class

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