$235 Find Cheap Flights from Seattle to Montreal - Compare and Save

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

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport takes 00m, covering 2,276 miles.

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 Seattle to Montreal Pierre Elliott Trudeau Intl Airport range from $566 to $823, with an average of $683 over the past 12 months. Anything below $566 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 35% above the $683 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $431 round-trip via Calgary (YYC), compared to $743 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $65–$84 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A220-300 family is used most often on this route, operated mainly by United Airlines and Air Canada. Other aircraft seen on the route include Airbus A330-300 variants.

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

One-way fares from Seattle to Montreal Pierre Elliott Trudeau Intl Airport are currently lower than usual. Average one-way flight prices are about $255, which is 12% below the typical average for this route.

Montreal Pierre Elliott Trudeau Intl Airport (YUL) hosts 5 major car rental companies, with daily rates starting from around $12 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Alamo
• Thrifty
• Hertz
• Avis

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).

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

• Vancouver Intl (YVR) - 43% of one-stop connections
• Toronto Pearson Intl (YYZ) - 22% of one-stop connections
• Calgary (YYC) - 14% of one-stop connections
• Chicago O'Hare Intl (ORD) - 10% of one-stop connections

Yes. Flexible dates can save you up to 18% on flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport. Wednesday is the cheapest departure day at $608 round-trip on average, while Monday is the most expensive at $736, a difference of $128.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 47m, compared with 7h 53m via Minneapolis St Paul (MSP) and 8h 23m via Toronto Pearson Intl (YYZ).

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.

Some of the most popular sights in Montreal Pierre Elliott Trudeau Intl Airport are Centre Bell, Vieux-Port de Montréal and Palais des congres de Montreal. These are among the most viewed places in Montreal Pierre Elliott Trudeau Intl Airport on KAYAK.

Among airlines operating Seattle to Montreal Pierre Elliott Trudeau Intl Airport 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 cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag in Economy Class class

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

Several flights from SEA to YUL have layovers en route. Some of the common layover cities include Calgary (YYC) by WestJet and Flair, Washington, D.C. (IAD) by United, Vancouver (YVR) by Air Canada, San Francisco (SFO) by United, Toronto (YYZ) by Air Canada, Los Angeles (LAX) by United, Atlanta (ATL) by Delta, Chicago (ORD) BY United, Minneapolis (MSP) by Delta, and Dallas (DFW) by American.

STM 747 Express 747 Bus connects YUL Airport to downtown Montreal and operates a 17-mins interval. Orleans Express Service Aeroport Trudeau Bus connects YUL Airport to downtown Montreal and runs four times daily. Societe de Transport de Montreal 354 Bus connects YUL Airport to downtown Montreal and operates five times daily. Taxis are available on demand on YUL Airport transport ground and link YUL Airport with downtown Montreal.

Air Canada can accommodate people with special needs flying from SEA to YUL. They offer accessible services such as booking assistance, wheelchair assistance during boarding, navigation, and disembarking for those with reduced mobility, and priority checking. The airline provides alternative access to information for passengers who are hard of hearing and have low vision, such as closed captioning, braille, and audio descriptions.

Your minor can travel alone from SEA to YUL unaccompanied at a fee with United Airlines. The airline allows children aged 5 to 14 but restricts connecting flight travels to those aged eight and above. You must accompany your minor for check-in at least 2 hours before departure. You must also provide documents such as the minor’s passport and birth certificate to verify age. You must provide additional documents and information such as your photo ID, contact number, and details of the receiving adult, including name, address, and contact telephone number.