Cheap flights from Seattle, WA to Belfast, United Kingdom
Flights starting at $325. Choose between easyJet, Alaska Airlines, or Lufthansa 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 Belfast. Book your trip to arrive at Belfast International, or George Best Belfast City. The most popular airlines for this route are easyJet, Alaska Airlines, Lufthansa, British Airways, and Condor. Seattle and Belfast have 327 direct flights per week. When you arrive at Belfast, consider visiting Trinity College, Dublin, Bru Na Boinne Neolithic Site (County Meath, Ireland), and Giant's Causeway.
Check-in for a flight from Seattle to Belfast
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 |
Lufthansa | DLH | LH | No | 0 0 |
British Airways | BAW | BA | No | 0 0 |
Condor | CFG | DE | No | No |
Weather in Belfast
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 6°C | 2°C |
February | 7°C | 3°C |
March | 8°C | 3°C |
April | 11°C | 4°C |
May | 13°C | 7°C |
June | 16°C | 10°C |
July | 17°C | 11°C |
August | 17°C | 11°C |
September | 15°C | 10°C |
October | 12°C | 8°C |
November | 9°C | 5°C |
December | 7°C | 3°C |
14 day forecast
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