Cheap flights from Idaho Falls, ID to Billings, MT
Flights starting at $219. Choose between Allegiant Air, Alaska Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to Billings
Cheapest one-way trip | $283 |
---|---|
Cheapest round-trip | $568 |
Most popular airline | Allegiant Air |
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The most popular airlines for this route are Allegiant Air, Alaska Airlines, Frontier Airlines, and Spirit Airlines. Idaho Falls and Billings have 13 direct flights per week.
Check-in for a flight from Idaho Falls to Billings
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 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 |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Billings
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 0°C | -7°C |
February | 0°C | -8°C |
March | 7°C | -2°C |
April | 12°C | 1°C |
May | 18°C | 6°C |
June | 24°C | 11°C |
July | 30°C | 16°C |
August | 29°C | 15°C |
September | 24°C | 10°C |
October | 14°C | 3°C |
November | 6°C | -2°C |
December | 0°C | -8°C |
14 day forecast
Frequently asked questions
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