Cheap flights from Knoxville, TN to Boise, ID
Flights starting at $97. Choose between Alaska Airlines, Allegiant Air, or Frontier Airlines to find the best price.
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Tips to know when travelling to Boise
Cheapest one-way trip | $338 |
---|---|
Cheapest round-trip | $795 |
Most popular airline | Alaska Airlines |
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The most popular airlines for this route are Alaska Airlines, Allegiant Air, Frontier Airlines, Spirit Airlines, and United Airlines. Knoxville and Boise have 112 direct flights per week.
Check-in for a flight from Knoxville to Boise
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 |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Weather in Boise
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 2°C | -4°C |
February | 5°C | -2°C |
March | 10°C | 1°C |
April | 14°C | 3°C |
May | 19°C | 8°C |
June | 25°C | 13°C |
July | 32°C | 18°C |
August | 31°C | 17°C |
September | 25°C | 13°C |
October | 16°C | 6°C |
November | 8°C | 0°C |
December | 2°C | -4°C |
14 day forecast
Frequently asked questions
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