$153 Find Cheap Flights from Seattle to Toronto - Compare and Save

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

• Earliest: departs at 7:45 am and lands at 12:23 pm
• Latest: departs at 8:33 am and lands at 1:11 pm.

The flight takes about 4h 38m.

Four cabin classes are available on flights from Seattle to Toronto:

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

Prices vary by airline.

A nonstop flight from Seattle to Toronto takes 4h 38m, covering 2,065 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 Toronto range from $362 to $675, with an average of $524 over the past 12 months. Anything below $362 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 55% above the $524 route average. Book 14 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $386 round-trip via Calgary (YYC), compared to $550 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Morning is the busiest departure period on Seattle to Toronto flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening 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 $398 to $2,643. That means the highest observed fare was about 7x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Seattle to Toronto 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 Seattle to Toronto are currently lower than usual. Average one-way flight prices are about $201, which is 19% below the typical average for this route.

Since Toronto is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Toronto Pearson Intl Airport (YYZ) — daily rates averaging $37:

• Ace
• City Car & Truck Rental
• Routes Car & Truck Rentals
• Zoom Rent A Car
• Hertz

Near Toronto Island Airport (YTZ) — daily rates averaging $55:

• Hertz
• Enterprise Rent-A-Car
• National
• Advance Car And Truck Rental
• Zoom Rent A Car

Flights from Seattle to Toronto usually depart from Seattle/Tacoma Intl (SEA) and may arrive at several airports in Toronto area, including Toronto Region of Waterloo Intl (YKF), Toronto Island (YTZ) and Toronto Pearson Intl (YYZ).

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

• Calgary (YYC) - 76% of one-stop connections
• Vancouver Intl (YVR) - 10% of one-stop connections
• Chicago O'Hare Intl (ORD) - 6% of one-stop connections
• Salt Lake City (SLC) - 2% of one-stop connections

Yes. Flexible dates can save you up to 28% on flights from Seattle to Toronto. Saturday is the cheapest departure day at $462 round-trip on average, while Sunday is the most expensive at $633, a difference of $171.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

• Alaska Airlines
• Air Canada

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 42m, compared with 7h 43m via Vancouver Intl (YVR) and 7h 48m via Salt Lake City (SLC).

Toronto 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 Toronto are Rogers Centre, Union Station and Scotiabank Arena. These are among the most viewed places in Toronto on KAYAK.

Among airlines operating Seattle to Toronto flights:

• Alaska Airlines: offers free seat selection
• Air Canada: offers free seat selection
• United Airlines: offers free seat selection
• Hawaiian 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
• United Airlines: a cabin bag and a checked bag in Business Class

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