Cheap flights from Austin, TX to Sidney, MT
Choose between Cape Air, Alaska Airlines, or Allegiant Air to find the best price
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Tips to know when travelling to Sidney
Cheapest nonstop round-trip | £352 |
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Most popular airline | Cape Air |
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Travelers usually depart from Austin–Bergstrom International, Austin, TX - Downtown Bus stop, or Austin-South Congress when they travel from Austin to Sidney. The most popular airlines for this route are Cape Air, Alaska Airlines, Allegiant Air, Spirit Airlines, and Frontier Airlines. Austin and Sidney have 22 direct flights per week.
Check-in for a flight from Austin to Sidney
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Cape Air | KAP | 9K | Yes | No |
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 |
Spirit Airlines | NKS | NK | 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 |
Weather in Sidney
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | -3°C | -12°C |
February | -3°C | -12°C |
March | 4°C | -5°C |
April | 11°C | 1°C |
May | 18°C | 7°C |
June | 25°C | 13°C |
July | 29°C | 17°C |
August | 28°C | 16°C |
September | 23°C | 11°C |
October | 13°C | 3°C |
November | 4°C | -4°C |
December | -3°C | -10°C |
14 day forecast
Frequently asked questions
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