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ISP - TYS

$604 Find cheap flights from Islip, New York to Knoxville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Knoxville departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Knoxville, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Islip to Knoxville (ISP-TYS)

 
These are the cheapest deals for flights from Islip to Knoxville currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Islip to Knoxville

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Islip to Knoxville.

Recent one-way flight deals from Islip to Knoxville

Only flying one-way? Below are some of the best one-way flight deals from Islip to Knoxville found on KAYAK recently.

Recent last minute flight deals from Islip to Knoxville

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Islip to Knoxville.

Recent direct flight deals from Islip to Knoxville

The latest deals for direct flights from Islip to Knoxville so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Islip to Knoxville

Find recent round-trip train or bus tickets from Islip to Knoxville.

All round-trip flight deals to Knoxville

The cheapest plane tickets to Knoxville found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:05 pm - 11:13 amISP-TYS
21h 08m2 stops
6:00 am - 5:07 pmTYS-ISP
35h 07m3 stops
$604
Find Deal
Sun, Jun 23 - Thu, Jun 27
2:05 pm - 9:48 pmISP-TYS
31h 43m3 stops
6:00 am - 5:07 pmTYS-ISP
35h 07m3 stops
$649
Find Deal
Sun, Jun 23 - Thu, Jun 27

Flights from Islip to Knoxville - Travel Insights & Trends

Get data-powered insights and trends into flights from Islip to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Islip, New York to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Islip, New York to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Islip, New York to Knoxville is January, where tickets cost $231 on average. On the other hand, the most expensive months are May and June, where the average cost of tickets is $371 and $369 respectively.

How far in advance should I book a flight from Islip, New York to Knoxville?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Islip, New York to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Islip, New York to Knoxville, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 90 days before departure.

Good to know

Cheapest flight

$604
Flight from Islip to Knoxville

When to book flights from Islip to Knoxville

Are your dates flexible? Find out the best times to travel from Islip to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to Knoxville

  • What is the cheapest flight from Islip, New York to Knoxville?

    In the last 3 days, the lowest price for a flight from Islip, New York to Knoxville was $604 for a round-trip ticket.

  • Do I need a passport to fly between Islip and Knoxville?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Islip to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Islip with another airline. Booking your flights between Islip and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Islip - Knoxville Flights

Departure:

Islip (ISP)United States

Destination:

Knoxville (TYS)United States

Return flight deals:

Knoxville - Islip

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