Cheap flights from Louisville, KY to Idaho Falls, ID
Flights starting at $140. Choose between Spirit Airlines, Allegiant Air, or Alaska Airlines to find the best price.
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Tips to know when travelling to Idaho Falls
Cheapest one-way trip | $159 |
---|---|
Cheapest round-trip | $365 |
Average round-trip | $429 |
Includes rare itinerary | |
Most popular airline | Spirit Airlines |
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The most popular airlines for this route are Spirit Airlines, Allegiant Air, Alaska Airlines, Frontier Airlines, and United Airlines. Louisville and Idaho Falls have 42 direct flights per week. When you arrive at Idaho Falls, consider visiting The Rocky Mountains, and Yellowstone National Park.
Check-in for a flight from Louisville to Idaho Falls
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Spirit Airlines | NKS | NK | 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 |
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 |
United Airlines | UAL | UA | Yes | No |
Weather in Idaho Falls
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | -1°C | -10°C |
February | 0°C | -8°C |
March | 6°C | -3°C |
April | 12°C | 0°C |
May | 18°C | 4°C |
June | 24°C | 9°C |
July | 31°C | 13°C |
August | 29°C | 13°C |
September | 24°C | 9°C |
October | 14°C | 2°C |
November | 5°C | -3°C |
December | -1°C | -9°C |
14 day forecast
Frequently asked questions
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