Cheap flights from Shannon, County Clare, Ireland to Portland, OR
Flights starting at £245. Choose between Aer Lingus, Alaska Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to Portland
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The most popular airlines for this route are Aer Lingus, Alaska Airlines, Frontier Airlines, JetBlue Airways, and Spirit Airlines. Shannon, County Clare and Portland have 281 direct flights per week.
Check-in for a flight from Shannon, County Clare to Portland
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Aer Lingus | EIN | EI | No | Opens 48 days before flight Closes 5 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Portland
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 8°C | 2°C |
February | 8°C | 2°C |
March | 11°C | 3°C |
April | 14°C | 5°C |
May | 19°C | 8°C |
June | 23°C | 10°C |
July | 28°C | 13°C |
August | 28°C | 14°C |
September | 24°C | 12°C |
October | 17°C | 8°C |
November | 10°C | 4°C |
December | 7°C | 2°C |
14 day forecast
Frequently asked questions
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Flights from Shannon, County Clare
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