Cheap flights from St. Louis, MO to Islip, NY
Flights starting at £72. Choose between Frontier Airlines, Spirit Airlines, or Southern Airways Express to find the best price.
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Tips to know when travelling to Islip
Cheapest one-way trip | £154 |
---|---|
Cheapest round-trip | £196 |
Average round-trip | £228 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
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The most popular airlines for this route are Frontier Airlines, Spirit Airlines, Southern Airways Express, BREEZE, and Sun Country Airlines. St. Louis and Islip have 55 direct flights per week. When you arrive at Islip, consider visiting Staten Island, Metropolitan Museum of Art, Statue of Liberty, Times Square, Empire State Building, and Manhattan Island.
Check-in for a flight from St. Louis to Islip
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 |
Southern Airways Express | FDY | 9X | Yes | No |
BREEZE | MX | No | No | |
Sun Country Airlines | SCX | SY | Yes | No |
Weather in Islip
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 3°C | -1°C |
February | 4°C | 0°C |
March | 7°C | 2°C |
April | 12°C | 7°C |
May | 17°C | 12°C |
June | 22°C | 17°C |
July | 26°C | 21°C |
August | 26°C | 21°C |
September | 22°C | 18°C |
October | 17°C | 13°C |
November | 11°C | 6°C |
December | 7°C | 2°C |
14 day forecast
Frequently asked questions
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