Cheap flights from Kalispell, MT to St. Louis, MO
Flights starting at £109. Choose between Alaska Airlines, United Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to St. Louis
Cheapest one-way trip | £176 |
---|---|
Cheapest round-trip | £446 |
Most popular airline | Alaska Airlines |
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The most popular airlines for this route are Alaska Airlines, United Airlines, Frontier Airlines, Allegiant Air, and Southern Airways Express. Kalispell and St. Louis have 83 direct flights per week.
Check-in for a flight from Kalispell to St. Louis
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 |
United Airlines | UAL | UA | Yes | No |
Frontier Airlines | FFT | F9 | 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 |
Southern Airways Express | FDY | 9X | Yes | No |
Weather in St. Louis
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 3°C | -3°C |
February | 6°C | -2°C |
March | 13°C | 3°C |
April | 18°C | 8°C |
May | 24°C | 14°C |
June | 29°C | 19°C |
July | 31°C | 21°C |
August | 30°C | 20°C |
September | 27°C | 16°C |
October | 20°C | 10°C |
November | 12°C | 3°C |
December | 7°C | 0°C |
14 day forecast
Frequently asked questions
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Airports near Kalispell
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