Cheap flights from Toronto Island to Seattle

Compare Toronto Island to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Toronto Island to Seattle

Looking for a cheap last-minute deal or the best return flight from Toronto Island Airport to Seattle? If you want to travel next month, return fares start from $486. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Toronto Island to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto Island to Seattle flights are currently cheapest in May.

Toronto to Seattle: Flight information

The things to know before you go.
Cheapest flight found$265
Cheapest month to flyMay

Finding cheap flights from Toronto Island to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Toronto Island to Seattle is $401. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Toronto Island to Seattle. But we found flights with one or more stops from $401.
As of May 2026, there are no flights flying from Toronto Island to Seattle.
The cheapest month to fly from Toronto Island to Seattle is usually May.
If you're flying from Toronto Island Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $401.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Toronto Island Airport to Seattle on Sunday, 31 May 2026.
No airlines currently offer direct flights between Toronto Island Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Air Canada offers the cheapest flight tickets to Seattle.

Travelling from Billy Bishop Toronto City Airport (YTZ) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is three hours behind Toronto, where Billy Bishop Toronto City Airport is located.

  • To avoid missing your YTZ to Seattle flight, leave enough time to check in and drop off your luggage. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • You can expect longer lines in popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Located around 3 kilometres from central Toronto, YTZ can be reached in about 35 minutes by car. The journey on public transport will take roughly 40 minutes.

  • Want a relaxed start to your trip? Stay near YTZ. Whether you have an early flight from Billy Bishop Toronto City Airport to Seattle or just don't want to be rushed, these hotels have you covered:

  • 62.09% of flights taking off from Billy Bishop Toronto City Airport reach their destination on schedule.

How to find the cheapest flights from Billy Bishop Toronto City Airport (YTZ) to Seattle

  • $265 is currently the lowest price for a one-way Billy Bishop Toronto City Airport to Seattle flight. Return plane tickets start from $401. These fares can change based on demand and availability.

  • Don't wait until the last minute. You're more likely to land cheap flights from YTZ to Seattle if you book in advance. Airlines often offer some excellent early bird discounts.

  • If you can be flexible with your travel dates, try using the 'Whole month' search tool. It'll find the cheapest price across every month when searching for a Billy Bishop Toronto City Airport to Seattle ticket.

  • Stay on top of deals for cheap flights from YTZ to Seattle by creating a Price Alert. You'll receive an email or notification through the app when a special offer becomes available.

  • Select your ideal departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Billy Bishop Toronto City Airport to Seattle by 'Fastest,' 'Best' or 'Cheapest.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're grabbing a cab or a ride-share, the drive takes roughly 20 minutes.

  • Travelling to the centre on public transport takes around 55 minutes.

  • If you have a late flight from Billy Bishop Toronto City Airport to Seattle, nothing beats the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these accommodation options near SEA:

  • Pick up a Seattle-Tacoma International Airport rental car and discover Seattle and beyond with your own wheels. Thrifty, Europcar and Budget are top providers you can book with here.

  • Lock in the best possible rate by booking your vehicle from Seattle-Tacoma International Airport around one week before your flight from YTZ to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • After your flight from Billy Bishop Toronto City Airport to Seattle has touched down, you can get to the city centre in about 10 minutes by car. Central Seattle is roughly 3 kilometres from Lake Union Sea Plane Base Airport (LKE).

  • Public transport will get you there in around 25 minutes.

  • You'll find some comfortable places ready to welcome you near LKE. Settle in and get cosy after your YTZ to Seattle flight at any of these perfectly located options:

Best time to go to Seattle

  • Before locking in your flights from Billy Bishop Toronto City Airport to Seattle, consider which time of year works best for you. High season in Seattle offers a bustling atmosphere and plenty of things to do, while the off-season brings cheaper deals on hotels and smaller crowds.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Lock in your Billy Bishop Toronto City Airport to Seattle plane ticket then if this is the type of weather you enjoy.

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for a cheap ticket from YTZ to Seattle around that time if you like travelling in cooler conditions.

More about Seattle

  • Start your Seattle trip right by choosing the ideal place to stay. As soon as you've booked your flight from Billy Bishop Toronto City Airport to Seattle, browse our range of accommodation options including:

  • LMN Architects and Greyhound: Bus Station are a couple of major attractions to put on your Seattle to-do list. Keep the momentum going by heading to Boeing Radiation Effects Lab.

Explore more of United States

  • Seattle is easy to fall in love with, but there are so many other corners of United States just waiting to be discovered. Around 241 kilometres south of Seattle, a trip to Portland will keep you on the go. Start with leading sights like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Spokane is another sought-after destination in United States and is around 370 kilometres east of Seattle. No trip is complete without experiencing Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.