Cheap flights from Seattle, WA to Lisbon, Portugal
Flights starting at $430. Choose between WestJet, Alaska Airlines, or TAP Portugal to find the best price.
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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Lisbon. The most popular airlines for this route are WestJet, Alaska Airlines, TAP Portugal, Vueling, and easyJet. Seattle and Lisbon have 315 direct flights per week. When you arrive at Lisbon, consider visiting Mosteiro Dos Jerónimos, Bairro Alfama, Lisbon, Bairro of Ribeira, Portugal, and Sintra.
Check-in for a flight from Seattle to Lisbon
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
WestJet | WJA | WS | No | Opens 24 days before flight Closes 1 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
TAP Portugal | TAP | TP | No | Opens 36 days before flight Closes 1 hours before flight |
Vueling | VLG | VY | No | Opens 168 days before flight Closes 4 hours before flight |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Weather in Lisbon
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 14°C | 9°C |
February | 15°C | 9°C |
March | 17°C | 10°C |
April | 19°C | 12°C |
May | 22°C | 14°C |
June | 24°C | 16°C |
July | 26°C | 17°C |
August | 27°C | 17°C |
September | 25°C | 17°C |
October | 22°C | 16°C |
November | 17°C | 12°C |
December | 15°C | 10°C |
14 day forecast
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