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Flights from Islip to Knoxville

Cheap flight deals from Islip to Knoxville

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Islip to Knoxville

Off-season for travel March
Peak season for travel April
Flight distance 1,099.13 km
Popular airline Frontier Airlines

When is the cheapest time to fly from Islip to Knoxville?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights
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  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
  • 22 29

  • Jul

    29 6
  • 6 13
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Islip (ISP) to Knoxville (TYS) the cheapest?

    Airlines adjust prices for flights from Islip to Knoxville based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Islip (ISP) to Knoxville (TYS) cost?

    According to Trip.com's data, the lowest price is around AED 2,472.

  • How many airports are there in Knoxville (TYS)?

    There are 1 airport(s) near Knoxville (TYS): Mcghee Tyson Airport.

How to find a cheap flight from Islip to Knoxville

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Islip to Knoxville. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Islip to Knoxville ticket.
Tap "Date" on flight search bar to get the calender for Islip to Knoxville airfare over next 6 months in 2025.
2
Compare cheap Islip to Knoxville flight deals from over hundreds of airlines.
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3
Set up a Price Alert
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4
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5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
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To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Islip to Knoxville to get exclusive deals for you.

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