Cheap flights from Portland, OR to Great Falls, MT
Flights starting at $121. Choose between Alaska Airlines, Allegiant Air, or Frontier Airlines to find the best price.
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Tips to know when travelling to Great Falls
Cheapest one-way trip | $177 |
---|---|
Cheapest round-trip | $307 |
Average round-trip | $383 |
Most popular airline | Alaska Airlines |
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The most popular airlines for this route are Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines, and Spirit Airlines. Portland and Great Falls have 64 direct flights per week.
Check-in for a flight from Portland to Great Falls
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 |
Allegiant Air | AAY | G4 | 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 |
United Airlines | UAL | UA | Yes | No |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Great Falls
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 0°C | -7°C |
February | 0°C | -8°C |
March | 6°C | -3°C |
April | 11°C | 0°C |
May | 17°C | 5°C |
June | 22°C | 9°C |
July | 29°C | 14°C |
August | 28°C | 14°C |
September | 22°C | 9°C |
October | 13°C | 2°C |
November | 5°C | -3°C |
December | 0°C | -7°C |
14 day forecast
Frequently asked questions
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Airports near Portland
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