$228 Find Cheap Flights from Toronto to Seattle - Compare and Save

These are the earliest and latest flight times available from Toronto Pearson Intl Airport to Seattle:

• Earliest: departs at 5:15 pm and lands at 10:51 pm
• Latest: departs at 6:25 pm and lands at 12:01 am.

The flight takes about 5h 36m.

Three cabin classes are available on flights from Toronto Pearson Intl Airport to Seattle:

• Economy Class
• Business Class
• First Class

A nonstop flight from Toronto Pearson Intl Airport to Seattle takes 5h 36m, covering 2,054 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 Toronto Pearson Intl Airport to Seattle range from $295 to $551, with an average of $409 over the past 12 months. Anything below $295 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 56% above the $409 route average. Book 11 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $363 round-trip via Charlotte Douglas (CLT), compared to $426 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $25–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 9 family is used most often on this route, operated mainly by Alaska Airlines and Air Tahiti Nui. Other aircraft seen on the route include Airbus A220-300 variants.

Evening is the busiest departure period on Toronto Pearson Intl Airport to Seattle flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $335 to $1,396. That means the highest observed fare was about 4x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Toronto Pearson Intl Airport to Seattle flights:

• Alaska Airlines
• Air Canada

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Toronto Pearson Intl Airport to Seattle are currently lower than usual. Average one-way flight prices are about $254, which is 5% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

Flights from Toronto Pearson Intl Airport to Seattle usually depart from Toronto Pearson Intl (YYZ) and arrive at Seattle/Tacoma Intl (SEA).

Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Toronto Pearson Intl Airport to Seattle route, 30% of flights were delayed in the past 3 months, with delays averaging 2h 35m.

One-stop flights from Toronto Pearson Intl Airport to Seattle most commonly connect through:

• Calgary (YYC) - 74% of one-stop connections
• Vancouver Intl (YVR) - 14% of one-stop connections
• Chicago O'Hare Intl (ORD) - 6% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 2% of one-stop connections

Yes. Flexible dates can save you up to 22% on flights from Toronto Pearson Intl Airport to Seattle. Tuesday is the cheapest departure day at $358 round-trip on average, while Sunday is the most expensive at $457, a difference of $99.

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

2 airlines operate flights between Toronto Pearson Intl Airport and Seattle. The airlines offering nonstop flights on this route include:

• Alaska Airlines
• Air Canada

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 8h 01m, compared with 8h 03m via Vancouver Intl (YVR) and 8h 04m via Chicago O'Hare Intl (ORD).

Seattle is 3 hours behind Toronto Pearson 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 Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Toronto Pearson Intl Airport to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• 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:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Air Canada: a cabin bag and a checked bag in Economy Class
• Jazz: a cabin bag and a checked bag in Economy Class

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