Cheap flights from San Juan, United States to St. Louis, MO
Flights starting at $65. Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price.
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Tips to know when travelling to St. Louis
Cheapest one-way trip | $117 |
---|---|
Cheapest round-trip | $226 |
Average round-trip | $250 |
Most popular airline | Frontier Airlines |
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Travelers usually depart from Luis Muñoz Marín International, or Fernando Luis Ribas Dominicci when they travel from San Juan to St. Louis. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Southern Airways Express, and JetBlue Airways. San Juan and St. Louis have 177 direct flights per week.
Check-in for a flight from San Juan to St. Louis
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
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 |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
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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