$184 Find Cheap Flights from Islip to Tennessee

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 Tennessee departing on 2/21. 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$184
Knoxville
Knoxville1 stop$337
Nashville
Nashville1 stop$184
Knoxville
Knoxville1 stop$337

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

Sat, Feb 21 - Tue, Feb 24
Multiple Airlines Logo
11:41 am - 7:57 pm
ISP
-
BNA
9h 16m1 stop
Multiple Airlines Logo
2:54 pm - 8:40 am
BNA
-
ISP
16h 46m1 stop
$184Multiple Airlines
Sat, Feb 21 - Tue, Feb 24
Multiple Airlines Logo
5:07 pm - 7:25 am
ISP
-
BNA
15h 18m2 stops
Multiple Airlines Logo
2:54 pm - 8:40 am
BNA
-
ISP
16h 46m1 stop
$222Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
Multiple Airlines Logo
8:40 pm - 8:29 am
ISP
-
BNA
12h 49m1 stop
Multiple Airlines Logo
2:51 pm - 8:09 pm
BNA
-
ISP
28h 18m2 stops
$231Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
Multiple Airlines Logo
8:40 pm - 8:29 am
ISP
-
BNA
12h 49m1 stop
Multiple Airlines Logo
9:25 am - 7:03 pm
BNA
-
ISP
8h 38m1 stop
$232Multiple Airlines
Thu, Jan 15 - Sun, Jan 18
Multiple Airlines Logo
7:58 pm - 4:07 pm
ISP
-
BNA
21h 09m1 stop
Multiple Airlines Logo
6:28 am - 6:46 pm
BNA
-
ISP
11h 18m2 stops
$253Multiple Airlines
Thu, Feb 5 - Sun, Feb 8
Multiple Airlines Logo
7:43 pm - 8:29 am
ISP
-
BNA
13h 46m1 stop
Multiple Airlines Logo
5:50 pm - 8:05 pm
BNA
-
ISP
25h 15m2 stops
$259Multiple Airlines
Mon, Jan 12 - Fri, Jan 16
Multiple Airlines Logo
2:01 pm - 8:29 am
ISP
-
BNA
19h 28m2 stops
Multiple Airlines Logo
4:52 pm - 10:46 pm
BNA
-
ISP
28h 54m1 stop
$267Multiple Airlines
Mon, Jan 12 - Fri, Jan 16
Multiple Airlines Logo
10:00 am - 7:17 pm
ISP
-
BNA
10h 17m1 stop
Multiple Airlines Logo
6:28 am - 8:52 am
BNA
-
ISP
25h 24m1 stop
$284Multiple Airlines
Fri, May 8 - Mon, May 11
Southwest Logo
4:30 pm - 9:15 pm
ISP
-
TYS
4h 45m1 stop
Southwest Logo
8:05 am - 11:50 am
TYS
-
ISP
3h 45m1 stop
$337Southwest
Fri, May 8 - Mon, May 11
Southwest Logo
8:35 am - 6:10 pm
ISP
-
TYS
9h 35m2 stops
Southwest Logo
8:05 am - 11:50 am
TYS
-
ISP
3h 45m1 stop
$342Southwest
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.

Which airlines fly non-stop between Islip and Tennessee?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Islip to Tennessee.

There is just one airline that flies from Islip to Tennessee direct and that is Southwest. The best round-trip deal found from Southwest for the route is to Nashville (BNA) and costs $248.

Find deals

Good to know

Low seasonAugust
Cheapest flight$184
Best time to beat the crowds with an average 31% drop in price.
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 4252 reviews
8.6Crew
7.0Food
8.1Boarding
8.0Comfort
7.5Entertainment
Airline reviews

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

2.0 MediocreMatthew, Dec 2025
DCA - OKC
Read more Southwest reviews

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

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

Information on your arrival and departure airports

Islip (ISP)