Alaska Airlines Cheap Flights from Toronto to United States
Deals on one-way flights from Toronto to United States.*
Toronto (YYZ)to
Seattle (SEA)Toronto (YYZ)to
Seattle (SEA)Toronto (YYZ)to
Seattle (SEA)Toronto (YYZ)to
Seattle (SEA)Toronto (YYZ)to
Seattle (SEA)*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way low-fare flights Toronto to United States.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Nov 19, 2025 | From $147 Seen: 4 hours ago | |
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Nov 12, 2025 | From $147 Seen: 4 hours ago | |
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Oct 1, 2025 | From $147 Seen: 4 hours ago | |
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Oct 21, 2025 | From $147 Seen: 4 hours ago | |
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Oct 29, 2025 | From $147 Seen: 4 hours ago | |
| Toronto (YYZ) | Seattle (SEA) | One-way | Saver | Depart: Nov 26, 2025 | From $147 Seen: 4 hours ago |
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.