Which airports can I use when flying from Islip to Knoxville?

Flights from Islip to Knoxville usually depart from Islip Long Island (ISP) and arrive at Knoxville McGhee Tyson (TYS).

What cabin classes can I book on flights from Islip to Knoxville?

Only Economy Class is available on flights from Islip to Knoxville.

Which airports do connecting flights from Islip to Knoxville pass through?

Most connecting flights from Islip to Knoxville pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Islip to Knoxville?

Yes. Flexible dates can save you up to 56% on flights from Islip to Knoxville. Tuesday is the cheapest departure day at $294 round-trip on average, while Wednesday is the most expensive at $656, a difference of $362. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Islip to Knoxville?

A nonstop flight from Islip to Knoxville takes 00m, covering 682 miles.

Do I need a passport to fly from Islip to Knoxville?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Islip to Knoxville changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $390 to $864. That means the highest observed fare was about 2x higher than the lowest one.

What car rental options are available at Knoxville McGhee Tyson Airport (TYS)?

Knoxville McGhee Tyson Airport (TYS) hosts 5 major car rental companies, with daily rates averaging $80 for economy cars. Top options include: • Budget • Alamo • Enterprise Rent-A-Car • Thrifty • Avis

How much should I expect to pay for a Islip to Knoxville flight?

Round-trip flights from Islip to Knoxville range from $332 to $531, with an average of $400 over the past 12 months. Anything below $332 counts as a good deal.

How much is a round-trip flight from Islip to Knoxville?

Round-trip flights from Islip to Knoxville typically range from $332 to $531. The lowest price found in the past 5 days was $390, on Southwest.

Which airline is the cheapest to fly from Islip to Knoxville?

Southwest ($390) offered the cheapest round-trip ticket from Islip to Knoxville in the last 5 days.

What is the cheapest layover airport when flying from Islip to Knoxville?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $450. Based on KAYAK data over the past 3 months.

When flying from Islip to Knoxville which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Islip to Knoxville layovers at 3h 12m over the past 3 months.

$325 CHEAP FLIGHTS from Islip to Knoxville (ISP - TYS)

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Cheapest round-trip

$390

Typical prices: $332-$531

Southwest

Mon 11/26Mon 12/3

ISP - TYS • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Islip and Knoxville. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Islip to Knoxville (ISP-TYS)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Islip to Knoxville

Thu, Nov 26 - Thu, Dec 3

5:45 am - 12:30 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

6h 45m1 stop Baltimore/Washington

7:55 am - 4:15 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

8h 20m1 stop Baltimore/Washington

$390Southwest

Thu, Nov 26 - Thu, Dec 3

5:45 am - 3:25 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

9h 40m2 stops Baltimore/Washington Nashville Intl

7:55 am - 4:15 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

8h 20m1 stop Baltimore/Washington

$396Southwest

Tue, Apr 20 - Sat, Apr 24

4:10 pm - 8:10 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

4h 00m1 stop Baltimore/Washington

7:55 am - 11:55 amTYS Knoxville McGhee Tyson-ISP Islip Long Island

4h 00m1 stop Baltimore/Washington

$427Southwest

Tue, Apr 20 - Sat, Apr 24

5:45 am - 4:45 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

11h 00m2 stops Baltimore/Washington Orlando

7:55 am - 11:55 amTYS Knoxville McGhee Tyson-ISP Islip Long Island

4h 00m1 stop Baltimore/Washington

$432Southwest

Tue, Apr 20 - Sat, Apr 24

5:45 am - 4:45 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

11h 00m2 stops Baltimore/Washington Orlando

12:55 pm - 11:00 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

10h 05m2 stops Tampa Baltimore/Washington

$437Southwest

Mon, Apr 19 - Sat, Apr 24

4:45 pm - 9:25 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

4h 40m1 stop Baltimore/Washington

7:55 am - 11:55 amTYS Knoxville McGhee Tyson-ISP Islip Long Island

4h 00m1 stop Baltimore/Washington

$447Southwest

Tue, Mar 16 - Fri, Mar 19

5:20 pm - 9:50 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

4h 30m1 stop Baltimore/Washington

12:40 pm - 10:00 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

9h 20m1 stop Orlando

$452Southwest

Mon, Apr 19 - Sat, Apr 24

4:45 pm - 9:25 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

4h 40m1 stop Baltimore/Washington

12:55 pm - 11:00 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

10h 05m2 stops Tampa Baltimore/Washington

$452Southwest

Mon, Nov 16 - Mon, Nov 23

11:13 am - 5:18 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

30h 05m2 stops Myrtle Beach Intl Fort Lauderdale

7:11 pm - 3:45 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

20h 34m1 stop Orlando

$454Multiple Airlines

Wed, Nov 11 - Sun, Nov 15

12:00 pm - 7:43 pmISP Islip Long Island-TYS Knoxville McGhee Tyson

31h 43m2 stops Raleigh-Durham Tampa

7:00 am - 5:31 pmTYS Knoxville McGhee Tyson-ISP Islip Long Island

10h 31m1 stop Orlando Sanford Intl

$545Multiple Airlines

Booking Insights

Price, demand and travel trends for Islip to Knoxville flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Islip to Knoxville? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip to Knoxville departing in november.

Find deals

Cheapest flight	$390

Round-trip 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.

What cabin classes can I book on flights from Islip to Knoxville?
Only Economy Class is available on flights from Islip to Knoxville.
How long is a flight from Islip to Knoxville?
A nonstop flight from Islip to Knoxville takes 00m, covering 682 miles.
Do I need a passport to fly from Islip to Knoxville?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Islip to Knoxville flight?
Round-trip flights from Islip to Knoxville range from $332 to $531, with an average of $400 over the past 12 months. Anything below $332 counts as a good deal.
Have flight prices from Islip to Knoxville changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $390 to $864. That means the highest observed fare was about 2x higher than the lowest one.
What car rental options are available at Knoxville McGhee Tyson Airport (TYS)?
Knoxville McGhee Tyson Airport (TYS) hosts 5 major car rental companies, with daily rates averaging $80 for economy cars. Top options include:

• Budget
• Alamo
• Enterprise Rent-A-Car
• Thrifty
• Avis
Which airports can I use when flying from Islip to Knoxville?
Flights from Islip to Knoxville usually depart from Islip Long Island (ISP) and arrive at Knoxville McGhee Tyson (TYS).
Which airports do connecting flights from Islip to Knoxville pass through?
Most connecting flights from Islip to Knoxville pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Islip to Knoxville?
Yes. Flexible dates can save you up to 56% on flights from Islip to Knoxville. Tuesday is the cheapest departure day at $294 round-trip on average, while Wednesday is the most expensive at $656, a difference of $362.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average $294, about $362 less than Wednesday fares (55% savings) based on the last 12 months.

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ISP - TYS

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Everything you should know

Cheap Flights from Islip to Knoxville (ISP-TYS)

Recent round-trip flight deals from Islip to Knoxville

Recent one-way flight deals from Islip to Knoxville

Price, demand and travel trends for Islip to Knoxville flights

How much is a round-trip flight from Islip to Knoxville?

Which airline is the cheapest to fly from Islip to Knoxville?

What is the cheapest layover airport when flying from Islip to Knoxville?

When flying from Islip to Knoxville which airport offers the shortest layover?

Key details for Islip to Knoxville flights

Cheapest flight

When to book flights from Islip to Knoxville

Your Islip to Knoxville flight questions, answered

Your guide to booking Islip to Knoxville flights

More options for your flight from Islip to Knoxville

Complete your trip to Knoxville with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Knoxville

Find direct flights to and from Islip and Knoxville

Flights from domestic origins to Knoxville

Flights to other popular destinations

Find deals for your return flight