Cheap flights from Seattle, WA to Lisbon, Portugal
Flights starting at $470. Choose between Alaska Airlines, Spirit Airlines, or TAP Portugal to find the best price.
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Tips to know when travelling to Lisbon
Cheapest one-way trip | $554 |
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Cheapest round-trip | $1,107 |
Includes rare itinerary | Travel hack |
Most popular airline | Alaska Airlines |
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Check-in for a flight from Seattle to Lisbon
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
TAP Portugal | TAP | TP | Yes | Opens 36 days before flight Closes 1 hours before flight |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Ryanair | RYR | FR | No | Opens 24 days before flight Closes 2 hours before flight |
Portugal COVID-19 travel restrictions

Most travelers from Seattle, SEA can enter Portugal, but there are restrictions.
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Visa requirements |
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Return
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Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in Portugal in our dedicated Stories article.
Frequently asked questions
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