Cheap flights from Seattle, WA to Lisbon, Portugal
Flights starting at £355. Choose between Alaska Airlines, WestJet, or TAP Portugal to find the best price.
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Tips to know when travelling to Lisbon
Cheapest one-way trip | £355 |
---|---|
Cheapest round-trip | £906 |
Average round-trip | £1,116 |
Includes rare itinerary | |
Most popular airline | Alaska Airlines |
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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 Alaska Airlines, WestJet, TAP Portugal, easyJet, and Vueling. Seattle and Lisbon have 385 direct flights per week. When you arrive at Lisbon, consider visiting Bairro Alfama, Lisbon, Mosteiro Dos Jerónimos, Sintra, and Bairro of Ribeira, Portugal.
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 |
WestJet | WJA | WS | 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 |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Vueling | VLG | VY | No | Opens 168 days before flight Closes 4 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
Frequently asked questions
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