Seattle to Toronto Flights
Everything you need to know about the SEA → YYZ international route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.
✈️ Route Overview
Key facts for the Seattle to Toronto route
🛫 Airlines on This Route
Carriers operating SEA → YYZ flights
| Airline | Notes |
|---|---|
| Air Canada | Primary carrier on this route |
| WestJet | Operates this route |
| Porter Airlines | Operates this route |
| Flair Airlines | Operates this route |
💡 Booking Tips
How to get the best deal on Seattle to Toronto flights
Best Days to Fly
Tuesday and Thursday tend to have lower demand and better fares
Fare Range
$300-$810 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.
Red-Eye Flights
✗ Not available
No overnight options on this route — plan for daytime travel.
Track Your Flight
Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.
🧳 Travel Tips for This Route
Practical advice from frequent travelers on the SEA → YYZ route
- 1 Premium Economy offers a meaningful upgrade over Economy on 7–9 hour flights.
- 2 Flying into secondary airports (e.g., LGW instead of LHR) can save significantly.
🏢 Airport Guides
Full terminal, transit, and traveler info for both airports
Track Your SEA → YYZ Flight — Automatically
TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.
Frequently Asked Questions — Seattle to Toronto Flights
How long is the flight from Seattle to Toronto?
The average flight time from Seattle (SEA) to Toronto (YYZ) is 4h 35m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.
Which airlines fly from Seattle to Toronto?
Airlines operating the SEA to YYZ route include Air Canada, WestJet, Porter Airlines and 1 more. Check each airline's website for current schedules and availability.
How far is Seattle from Toronto?
The great-circle distance from Seattle to Toronto is 2,055 miles (3,307 km). This is the straight-line distance — actual flight paths may be slightly longer.
What are the cheapest days to fly from Seattle to Toronto?
Tuesday and Thursday tend to have lower demand and better fares. Fares on this route typically range $300-$810 round trip.
Is there a time zone change flying from Seattle to Toronto?
Yes — there is a +3 hours when flying from Seattle to Toronto. TripTrack automatically shows local times for both your departure and arrival airports.
Are there red-eye flights from Seattle to Toronto?
No, there are currently no overnight (red-eye) flights on the SEA to YYZ route. All flights operate during daytime hours.
How can I track my Seattle to Toronto flight in real time?
TripTrack automatically tracks your SEA to YYZ flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.