Cheap flights from Islip, NY to Houston, TX
Choose between Frontier Airlines, Spirit Airlines, or BREEZE to find the best price
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Tips to know when travelling to Houston
Most popular airline | Frontier Airlines |
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Book your trip to arrive at George Bush Intercontinental, or William P. Hobby. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, BREEZE, JetBlue Airways, and Allegiant Air. Islip and Houston have 111 direct flights per week.
Check-in for a flight from Islip to Houston
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 |
BREEZE | MX | No | No | |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Houston
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 16°C | 8°C |
February | 18°C | 10°C |
March | 22°C | 13°C |
April | 25°C | 16°C |
May | 29°C | 20°C |
June | 33°C | 24°C |
July | 33°C | 25°C |
August | 34°C | 25°C |
September | 31°C | 23°C |
October | 27°C | 18°C |
November | 21°C | 13°C |
December | 18°C | 10°C |
14 day forecast
Frequently asked questions
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