Cheap flights from Key West, FL to St. Louis, MO
Flights starting at £77. Choose between Silver Airways, Frontier Airlines, or Spirit Airlines to find the best price.
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Tips to know when travelling to St. Louis
Cheapest one-way trip | £137 |
---|---|
Cheapest round-trip | £231 |
Average round-trip | £263 |
Includes rare itinerary | |
Most popular airline | Silver Airways |
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The most popular airlines for this route are Silver Airways, Frontier Airlines, Spirit Airlines, United Airlines, and Southern Airways Express. Key West and St. Louis have 91 direct flights per week.
Check-in for a flight from Key West to St. Louis
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 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 |
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 Key West
- Miami International
- Fort Lauderdale–Hollywood International
- Southwest Florida International
- Key West International