Cheap flights from Seattle, WA to Cardiff, United Kingdom
Flights starting at $318. Choose between easyJet, Alaska Airlines, or Aer Lingus 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 Cardiff. The most popular airlines for this route are easyJet, Alaska Airlines, Aer Lingus, KLM Royal Dutch Airlines, and Vueling. Seattle and Cardiff have 336 direct flights per week. When you arrive at Cardiff, consider visiting Tintern Abbey, United Kingdom, Stonehenge, St Fagans: National History Museum, Brecon Beacons, Avebury, St. David's Cathedral, Cardiff, and Roman Baths, Bath.
Check-in for a flight from Seattle to Cardiff
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Aer Lingus | EIN | EI | No | Opens 48 days before flight Closes 5 hours before flight |
KLM Royal Dutch Airlines | KLM | KL | No | Opens 30 days before flight Closes 1 hours before flight |
Vueling | VLG | VY | No | Opens 168 days before flight Closes 4 hours before flight |
Weather in Cardiff
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 3°C |
February | 8°C | 3°C |
March | 10°C | 4°C |
April | 12°C | 5°C |
May | 15°C | 8°C |
June | 17°C | 11°C |
July | 19°C | 13°C |
August | 19°C | 13°C |
September | 17°C | 11°C |
October | 14°C | 9°C |
November | 10°C | 6°C |
December | 8°C | 4°C |
14 day forecast
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