AirHint found the following cheapest one-way flights from Seattle (SEA) to Lisbon (LIS) in February 2026 (see full year).
One-Way flights
| 04 Feb | Icelandair | ||
| 01 Feb | WestJet | ||
| 02 Feb | WestJet | ||
| 03 Feb | Alaska Airlines |
Also check the deals for return flights from Seattle to Lisbon in February.
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