Cheap Flights from Toronto to Seattle
Low fares from $299. Non-stop options in about 4h 47m. Call now and let an expert beat the price you see online.
- Exclusive phone-only fares you won't see online
- Experts help with changes, cancellations & refunds
- No hidden booking fees — pay what you're quoted
- 24/7 US-based travel agents on call
About flights from Toronto to Seattle
The Toronto to Seattle route covers roughly 2,055 miles (3,307 km), departing from Toronto Pearson International Airport (YYZ) and arriving at Seattle-Tacoma International Airport (SEA). A non-stop journey takes about 4h 47m. Because this is an international route, fares swing widely by season, day of week and how far ahead you book — which is exactly where a quick phone call pays off.
Our travel experts hold consolidator and negotiated fare contracts that aren't shown on public booking sites. Call +1 (855) 302-0422 and we'll search live inventory for your exact dates, hold the best fare, and book it for you — 24/7.
Airlines flying YYZ → SEA
- American Airlines
- Delta Air Lines
- United Airlines
- JetBlue Airways
- Air Canada
When is the cheapest time to fly Toronto to Seattle?
Fares on the Toronto–Seattle route are usually lowest when you book 3 to 10 weeks ahead and fly mid-week (Tuesday or Wednesday). Prices climb sharply in the final two weeks and around holidays and peak summer travel. Because airlines release a small number of discounted seats on each flight, the best fare can disappear within hours — that's why a quick call often beats refreshing booking sites for days.
Toronto to Seattle: route at a glance
| Departure airport | Toronto Pearson International Airport (YYZ), Toronto |
|---|---|
| Arrival airport | Seattle-Tacoma International Airport (SEA), Seattle |
| Distance | 2,055 mi (3,307 km) |
| Typical flight time | ~4h 47m (non-stop) |
| Route type | International |
| Fares from | $299 (call for live pricing) |
How to change or cancel a Toronto–Seattle flight
Plans change. If you need to move your dates, switch passengers, or cancel altogether, the rules depend on your fare type and airline. Many tickets allow changes for a fee (or free within 24 hours of booking), and some qualify for a full refund. Rather than navigate each airline's fine print, call us — we'll review your options, waive avoidable fees where possible, and rebook you fast. Learn more in our guide to cancelling a flight and getting a refund and how to change your flight date without paying a fee.
Frequently asked questions
How much is a flight from Toronto to Seattle?
Fares from Toronto to Seattle start around $299 one-way, but the best last-minute deals change daily. Call +1 (855) 302-0422 to get the lowest live fare for your dates.
How long is the flight from Toronto to Seattle?
The distance is about 2,055 miles, so a non-stop flight takes roughly 4h 47m.
Which airlines fly from Toronto to Seattle?
Carriers commonly serving this route include American Airlines, Delta Air Lines, United Airlines, JetBlue Airways, Air Canada.
Can I get a cheaper fare by calling?
Yes. Our agents have access to consolidator and discounted fares that are often lower than online prices. Call +1 (855) 302-0422 — it's free and available 24/7.