Cheap flights from Islip, NY to Knoxville, TN
Flights starting at $68. Choose between Frontier Airlines, Allegiant Air, or Spirit Airlines to find the best price.
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Tips to know when travelling to Knoxville
Cheapest one-way trip | $68 |
---|---|
Cheapest round-trip | $167 |
Average round-trip | $291 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
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The most popular airlines for this route are Frontier Airlines, Allegiant Air, Spirit Airlines, and JetBlue Airways. Islip and Knoxville have 65 direct flights per week.
Check-in for a flight from Islip to Knoxville
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 |
Allegiant Air | AAY | G4 | 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 |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in Knoxville
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 0°C |
February | 10°C | 1°C |
March | 15°C | 4°C |
April | 20°C | 8°C |
May | 25°C | 13°C |
June | 29°C | 18°C |
July | 30°C | 20°C |
August | 30°C | 19°C |
September | 27°C | 16°C |
October | 21°C | 10°C |
November | 14°C | 4°C |
December | 10°C | 2°C |
14 day forecast
Frequently asked questions
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