Flights from Toronto to Seattle
North AmericaYear-round

Cheap Flights from Toronto to Seattle

Track economy fares on the YYZSEA route and get alerts when prices drop.

From
Toronto
YYZ
To
Seattle
SEA

Route Intelligence: TorontoSeattle

Flight Duration

4 hr 30 min (Direct)

Price Guidance

A good deal is under $250 roundtrip. Standard fare is $400+.

Peak Season

June to August

Top Airlines

Air Canada, WestJet, Alaska Airlines

Booking Tip

Book 4-8 weeks in advance for the best fares on this relatively short transborder route. Flying mid-week, especially Tuesday or Wednesday, can save 15-20% compared to weekend travel.

Track TorontoSeattle Fares

Set your target price and FlightKitten will scan this route twice daily. The instant economy fares drop below your budget, you'll get an email with the price, airline, and a direct booking link.

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Flying Business Class?

If you're considering business class on this route, BusinessClassSignal.com is a dedicated tool that tracks premium cabin fares. They alert you when business & first class prices drop — worth checking out if you fly up front.

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Other Routes to Seattle

More Destinations in North America

Route Briefing: Toronto to Seattle

Four and a half hours is all that stands between Toronto and one of the most quietly compelling cities in North America. Seattle doesn't shout for your attention the way some destinations do — it earns it slowly, through misty waterfront mornings, world-class coffee, and mountains that appear without warning at the end of city streets. For Canadians, this Pacific Northwest gem is close enough for a long weekend yet different enough to feel like a genuine escape.

Fares on this route are reasonable if you play it smart. A roundtrip under $250 is genuinely achievable, with Air Canada, WestJet, and Alaska Airlines all competing for your business year-round. Standard pricing creeps above $400, so the gap between a good deal and a mediocre one is significant. Book four to eight weeks out, and strongly consider flying Tuesday or Wednesday — mid-week travel on this transborder route can shave 15 to 20 percent off the fare compared to weekend departures. That's real money you can redirect toward a proper Seattle meal.

On arrival, Seattle-Tacoma International Airport connects to downtown via the Link Light Rail, a straightforward and affordable option that drops you near the heart of the city without the stress of traffic or the expense of a rideshare during peak hours. It's one of the more painless airport-to-city transfers in the United States.

Once you're in, let the city set the pace. Pike Place Market is genuinely worth the tourist crowds — it's a working public market where fishmongers, flower vendors, and local food producers have operated for over a century. Seattle's coffee culture is the real thing, not a marketing invention, and exploring the independent cafés scattered across Capitol Hill or Fremont will tell you more about the city's character than any guidebook summary. For nature, the proximity to Puget Sound, the Olympic Peninsula, and Mount Rainier means you're never far from something spectacular.

Timing matters here. June through August brings the best weather and the most energy, but also the highest fares and the fullest hotels. If you can travel in late spring or early fall, you'll find a city that's still very much alive but noticeably more relaxed, with better pricing across the board. Seattle's reputation for rain is somewhat overstated in summer — the Pacific Northwest actually enjoys some of the most reliably pleasant summer weather on the continent.

The one tip worth repeating: don't sleep on the ferry system. Taking a Washington State Ferry across Puget Sound costs very little and delivers a view of the Seattle skyline and the surrounding mountains that no rooftop bar can match.

How much are flights from Toronto to Seattle in 2026?

Flight prices from Toronto (YYZ) to Seattle (SEA) vary significantly depending on the season, day of the week, and how far in advance you book. A good deal is under $250 roundtrip. Standard fare is $400+. Popular carriers on this route include Air Canada, WestJet, Alaska Airlines. FlightKitten eliminates the guesswork by monitoring 220+ airlines twice daily and alerting you the moment economy fares hit your target price.

How does FlightKitten track Toronto to Seattle fares?

FlightKitten scans over 220 airlines twice every day for economy fares on the YYZ to SEA route. When you set a target price, FlightKitten continuously monitors this route and sends an email alert the moment fares drop below your budget. Each alert includes the exact fare, airline, dates, and an AI-powered briefing that explains whether the deal is genuinely good compared to historical pricing on this route. No more obsessive price checking — set your budget and let FlightKitten do the watching.

Pro tip: Book 4-8 weeks in advance for the best fares on this relatively short transborder route. Flying mid-week, especially Tuesday or Wednesday, can save 15-20% compared to weekend travel.

Looking for business class deals on this route? We recommend checking out BusinessClassSignal.com — a dedicated premium cabin fare tracker that's worth a look if you fly up front.