$148 Find Cheap Flights from Islip to Tennessee

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Tennessee departing on 3/18. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Tennessee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Tennessee, 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 Tennessee, as well as popular online travel agencies
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Cheap Flights from Islip to Tennessee

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Nashville
Nashville1 stop$273
Knoxville
Knoxville1 stop$279
Memphis
Memphis1 stop$352
Chattanooga
Chattanooga1 stop$382
Nashville
Nashville1 stop$273
Knoxville
Knoxville1 stop$279
Memphis
Memphis1 stop$352
Chattanooga
Chattanooga1 stop$382

Book Cheap Islip to Tennessee Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Tennessee that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Tennessee

Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
5:51 pm - 10:05 am
ISP
-
BNA
17h 14m
1 stop
Multiple Airlines Logo
7:40 am - 1:31 pm
BNA
-
ISP
28h 51m
2 stops
$273Multiple Airlines
Wed, May 6 - Wed, May 13
Southwest Logo
4:10 pm - 8:50 pm
ISP
-
TYS
4h 40m
1 stop
Southwest Logo
8:15 am - 1:50 pm
TYS
-
ISP
5h 35m
1 stop
$279Southwest
Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
9:33 am - 8:29 am
ISP
-
BNA
23h 56m
1 stop
Multiple Airlines Logo
7:40 am - 1:31 pm
BNA
-
ISP
28h 51m
2 stops
$279Multiple Airlines
Thu, Apr 16 - Tue, Apr 21
Multiple Airlines Logo
4:07 pm - 10:49 pm
ISP
-
BNA
7h 42m
1 stop
Multiple Airlines Logo
6:00 am - 11:10 am
BNA
-
ISP
28h 10m
2 stops
$280Multiple Airlines
Wed, May 6 - Wed, May 13
Southwest Logo
6:30 am - 5:10 pm
ISP
-
TYS
10h 40m
2 stops
Southwest Logo
8:15 am - 1:50 pm
TYS
-
ISP
5h 35m
1 stop
$284Southwest
Wed, May 6 - Wed, May 13
Southwest Logo
6:30 am - 5:10 pm
ISP
-
TYS
10h 40m
2 stops
Southwest Logo
12:50 pm - 10:10 pm
TYS
-
ISP
9h 20m
2 stops
$289Southwest
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
4:07 pm - 10:49 pm
ISP
-
BNA
7h 42m
1 stop
Multiple Airlines Logo
6:00 am - 11:10 am
BNA
-
ISP
28h 10m
2 stops
$297Multiple Airlines
Mon, Mar 16 - Thu, Mar 19
Southwest Logo
5:55 pm - 10:10 pm
ISP
-
TYS
4h 15m
1 stop
Southwest Logo
7:50 am - 11:40 am
TYS
-
ISP
3h 50m
1 stop
$299Southwest
Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
8:33 am - 8:29 am
ISP
-
BNA
24h 56m
1 stop
Multiple Airlines Logo
6:15 am - 2:39 pm
BNA
-
ISP
7h 24m
1 stop
$303Multiple Airlines
Mon, Mar 16 - Thu, Mar 19
Southwest Logo
5:55 pm - 10:10 pm
ISP
-
TYS
4h 15m
1 stop
Southwest Logo
6:30 am - 5:20 pm
TYS
-
ISP
10h 50m
2 stops
$304Southwest
Booking Insights

KAYAK's insights & trends for Islip to Tennessee flights

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

How much is a round-trip flight from Islip, New York to Tennessee?

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, New York to Tennessee departing in March.

What is the cheapest month to fly from Islip to Tennessee?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Tennessee, 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 to Tennessee is August, when tickets cost $279 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $547 and $482 respectively.

Good to know

Low seasonJanuary
Cheapest flight$148
Most popular time to fly and prices are also 16% lower on average.
Flight from Islip to Nashville

FAQs - booking Tennessee flights

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

    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 Tennessee.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to Tennessee 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 Tennessee?

    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 from Islip to Tennessee with an airline and back with another airline.

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

    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 from Islip to Tennessee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to Tennessee

 
See real verified KAYAK customer reviews for airlines flying from Islip to Tennessee. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Tennessee? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4293 reviews
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

4.0 OkayAnonymous, Feb 2026
BOI - LAS
Read more Southwest reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Everything you need to know for your flight from Islip to Tennessee

Information on your arrival and departure airports