Cheap flights from Knoxville to Islip (TYS - ISP)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Knoxville (TYS) to Islip (ISP)

All the information you need to plan the best TYS to ISP flight in 2022: compare Knoxville to Islip flight prices with the expected peak season, weather and rainfall in Islip.
TYS - ISP
Price
$266 - $1,073
ISP
Temperature
30.2 - 73.4 °F
ISP
Rainfall
3.3 - 4.4 inches

Popular in

July

High demand for flights, 52% potential price rise

Cheapest in

January

Best time to find cheap flights, 48% potential price drop

Round-trip from

$266

From Knoxville McGhee Tyson to Islip Long Island

One-way from

$207

One-way flight from Knoxville McGhee Tyson to Islip Long Island

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Knoxville to Islip, New York?

Flights from Knoxville to Islip, New York are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Islip, New York.

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

Find a great deal and save up to 72% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Knoxville to Islip, New York within the next two weeks, with the cheapest ticket starting at $331.

When is the cheapest time to fly from Knoxville to Islip, New York (TYS - ISP)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Islip, New York as you normally would.

Cheap flights from Knoxville to Islip in June, July 2022

The best prices found for TYS to ISP flights for June, July
23 Jul - 1 Aug
$353pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
TYS
Knoxville McGhee Tyson
23 Jul - 1 Aug
$370pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
23 Jul - 1 Aug
$416pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson

Knoxville McGhee Tyson to Islip 2022 flight deals

Cheap flights to Islip from Knoxville found for this year
3 Aug - 10 Aug
$303pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
TYS
Knoxville McGhee Tyson
3 Aug - 10 Aug
$349pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
12 Aug - 17 Aug
$350pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
TYS
Knoxville McGhee Tyson

Last minute flights from Knoxville to Islip

Late deals on round-trip flights to Islip from Knoxville, departing today and this week
7 Jul - 11 Jul
$439pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
7 Jul - 11 Jul
$442pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
   
2 STOPS
TYS
Knoxville McGhee Tyson
9 Jul - 12 Jul
$657pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
ISP
Islip Long Island
ISP
Islip Long Island
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson

One-way flights to Long Island from Knoxville

The cheapest one-way flights from Knoxville to Islip
3:35 am - 5:55 pm
American Airlines
1 Stop
14h 20m
TYS - ISP
American Airlines
3:35 am - 5:57 pm
American Airlines
1 Stop
14h 22m
TYS - ISP
American Airlines
3:50 pm - 7:40 am
American Airlines
2 Stops
15h 50m
TYS - ISP
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Knoxville</span> to <span class="emphasized">Islip</span> flights.

Flight FAQs

From Knoxville to Islip

Which airlines flying from Knoxville McGhee Tyson to Islip Long Island have flexible changes due to COVID-19?

American Airlines is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Knoxville to Islip, New York for under $400 on Cheapflights?

Yes, there are multiple flights from Knoxville to Islip, New York for under $400. The cheapest flight booked recently is on American Airlines for just $303, but on average you can expect to pay $375.

Are there last-minute flights available from Knoxville to Islip, New York for under $500?

There are currently 4+ open flights from Knoxville to Islip, New York within the next 7 days for less than $500.

What is the cheapest airline to fly from Knoxville to Islip, New York round-trip?

Flying on American Airlines is currently your cheapest option to Islip, New York, with prices starting at $303. Users have found that American Airlines is 40% cheaper than the other options available to this destination.

What are the cheapest flights from Knoxville to Islip, New York?

On average you can expect to pay $233 for a flight from Knoxville to Islip, New York. The cheapest flight overall is $198 while the most popular route, (Knoxville McGhee Tyson - Islip Long Island) is currently priced at $303.

COVID Restrictions

View COVID Travel Restrictions for Islip, NY

Do I need a COVID test to fly to Islip from Knoxville?

Information is based on travel restrictions for travel to Islip Long Island within the United States

Most visitors from Knoxville McGhee Tyson need to provide a negative COVID-19 test result and/or quarantine to enter Islip Long Island.

COVID-19 testing requirements
Visitors from Knoxville McGhee Tyson are not required to present a negative COVID-19 PCR test or antigen result upon entering Islip Long Island.

Quarantine requirements
Visitors from Knoxville McGhee Tyson are not required to quarantine after entering Islip Long Island.

Do I need a test to fly back to Knoxville from Islip?

Returning to Knoxville McGhee Tyson from Islip Long Island

COVID-19 testing requirements
Visitors from Islip Long Island are not required to present a negative COVID-19 PCR test or antigen result upon entering Knoxville McGhee Tyson.

Quarantine requirements
Visitors from Islip Long Island are not required to quarantine after entering Knoxville McGhee Tyson.

Hide COVID Travel Restrictions for Islip, NY

Alternative routes for Knoxville to Islip

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Islip

Things to know before you go - useful duration and weather info for your trip from Knoxville to Islip.
Average temperature for June in Islip
80.6 °F
Avg rainfall for June in Islip
3.9 ″

Airports servicing Knoxville

Airports servicing Islip

Home North America USA New York Islip Cheap flights from Knoxville to Islip