CHS - ISP

$39 Find Cheap Flights from Charleston to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Charleston to Islip departing on 9/26. 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

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

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

Cheap Flights from Charleston to Islip (CHS-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Charleston to Islip 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 Charleston to Islip

Mon, Sep 15 - Mon, Sep 22
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
8:47 pm - 10:59 pmISP-CHS
2h 12mnonstop
$82Breeze Airways
Find Deal
Wed, Sep 10 - Fri, Sep 12
Breeze Airways Logo
5:48 pm - 7:41 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
8:47 pm - 10:59 pmISP-CHS
2h 12mnonstop
$83Breeze Airways
Find Deal
Fri, Sep 26 - Fri, Oct 3
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
8:47 pm - 10:59 pmISP-CHS
2h 12mnonstop
$103Breeze Airways
Find Deal
Fri, Sep 26 - Mon, Oct 6
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
8:47 pm - 10:59 pmISP-CHS
2h 12mnonstop
$108Breeze Airways
Find Deal
Wed, Aug 20 - Fri, Aug 22
Breeze Airways Logo
11:38 am - 1:32 pmCHS-ISP
1h 54mnonstop
Breeze Airways Logo
10:36 am - 12:45 pmISP-CHS
2h 09mnonstop
$113Breeze Airways
Find Deal
Fri, Sep 5 - Sun, Sep 7
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
7:36 pm - 10:59 pmISP-CHS
3h 23m1 stop
$115Breeze Airways
Find Deal
Mon, Sep 8 - Thu, Sep 11
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
7:36 pm - 10:59 pmISP-CHS
3h 23m1 stop
$117Breeze Airways
Find Deal
Mon, Sep 29 - Fri, Oct 3
Breeze Airways Logo
6:14 pm - 8:07 pmCHS-ISP
1h 53mnonstop
Breeze Airways Logo
8:47 pm - 10:59 pmISP-CHS
2h 12mnonstop
$118Breeze Airways
Find Deal
Sat, Aug 30 - Sat, Sep 6
Southwest Logo
8:10 am - 2:55 pmCHS-ISP
6h 45m1 stop
Southwest Logo
5:40 am - 10:05 amISP-CHS
4h 25m1 stop
$242Southwest
Find Deal
Sat, Aug 30 - Sat, Sep 6
Southwest Logo
8:10 am - 2:55 pmCHS-ISP
6h 45m1 stop
Southwest Logo
6:05 am - 4:40 pmISP-CHS
10h 35m2 stops
$248Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for Charleston to Islip flights

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

What’s the cheapest day of the week to fly from Charleston to Islip?

The average price of all round-trip flights from Charleston to Islip clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Islip on a Friday and more expensive on a Sunday. On your return trip to Charleston, you should consider flying back on a Friday, and avoid Thursdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charleston to Islip, 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 Charleston to Islip is February, where tickets cost $107 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is $302 and $258 respectively.

Can I save money by flying with a layover from Charleston to Islip?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $189, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Charleston to Islip?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Charleston to Islip, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Charleston to Islip, you should book around 3 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$39
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 25% lower on average.
Flight from Charleston to Islip

When to book flights from Charleston to Islip

Are your dates flexible? Find out the best times to travel from Charleston to Islip 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 Charleston to Islip

  • What is the cheapest flight from Charleston to Islip?

    In the last 3 days, the lowest price for a flight from Charleston to Islip was $39 for a one-way ticket and $82 for a round-trip.

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

    No

  • Which airlines offer Wi-Fi service onboard planes from Charleston to Islip?

    Delta, and JetBlue offer inflight Wi-Fi service on the Charleston to Islip flight route.

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

    The Airbus A220-300 is the aircraft model that flies most regularly on the Charleston to Islip flight route.

  • On which days can I fly direct from Charleston to Islip?

    You can catch a nonstop flight from Charleston to Islip on on Monday, Wednesday, Friday, and Saturday.

  • Which is the best airline for flights from Charleston to Islip, Breeze Airways or Southwest?

    The two airlines most popular with KAYAK users for flights from Charleston to Islip are Breeze Airways and Southwest. With an average price for the route of $190 and an overall rating of 8.0, Breeze Airways is the most popular choice. Southwest is also a great choice for the route, with an average price of $386 and an overall rating of 8.0.

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

    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 Charleston to Islip.

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

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

    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 Islip with an airline and back to Charleston with another airline. Booking your flights between Charleston and ISP 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 Charleston to Islip?

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

KAYAK’s top tips for finding a cheap flight from Charleston to Islip

  • Looking for a cheap flight? 25% of our users found flights on this route for $109 or less one-way and $113 or less round-trip.

Prefer to fly direct from Charleston to Islip?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Charleston to Islip Long Island.
Find which airlines fly direct from Charleston Airport to Islip Long Island Airport, which days they fly and book direct flights.

Direct departures

Charleston to Islip Long Island

Monday

Breeze Airways

Breeze Airways

Wednesday

Breeze Airways

Breeze Airways

Friday

Breeze Airways

Breeze Airways

Saturday

Breeze Airways

Breeze Airways

See more direct flights

Direct returns

Islip Long Island to Charleston

Monday

Breeze Airways

Breeze Airways

Wednesday

Breeze Airways

Breeze Airways

Friday

Breeze Airways

Breeze Airways

Saturday

Breeze Airways

Breeze Airways

See more direct flights

Reviews of the top airlines flying from Charleston to Islip

 
See real verified KAYAK customer reviews for airlines flying from Charleston to Islip. 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 Charleston to Islip? 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 4241 reviews
7.0Food
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

Head rest did not move, very uncomfortable. Staff was great. There was no entertainment, would be nice not to have to pay for snack.

Worst airline - on our flight down from MCO to EYW, there was a huuuuuge delay. We were supposed to take off 12p and it was pushed back to almost 2:30p. We boarded the plane and then sat on the tarmac forever because we were "over" weight and had to burn fuel. Rather than ask guests to volunteer and leave, they kept us on the plane. Finally a family decided to off board and take their luggage with them. Shortly after, we left the terminal but then the pilot told us we may have to sit at the end of the runway for 15-20mins to burn more fuel. Which we ended up doing and of course it started to rain. We finally took off 2:50p. We were supposed to land 1p and didn't land until 3:45p. Basically had time to scramble off the plane, grab our luggage, request transportation to our hotel, unpack, rinse off and hustle over to our 6:30p dinner ressy. It's a shame Breeze is the only non-stop airline from MCO to EYW. For this, not sure I'd ever go back to EYW - most def will not take Breeze again.

Flight was rescheduled from (originally) early Saturday departure to a late Sunday departure. Then the late Sunday departure was delayed again (weather) and got in very late. We’ve enjoyed Breeze a lot, but this particular experience was a little disappointing.

Breeze was good but the sandiego airport had traffic and waiting 1 hour in the plane till take off

The return flight was soooooo much colder than the departure flight to Connecticut! I appreciated the layover because I didn't have to change planes. The staff and the service were the best! Everyone was so professional and accommodating. Having internet was great, but for the movies the flight offers through the app could be updated. THANKS EVERYONE! I fly BREEZE every opportunity I can get.

The flight was comfortable with the usual slight turbulence. Macadamia Nuts would be great snacks to purchase in flight.

This is one of the worst trips that I have ever had. Ending up with an overnight delay. I’m not happy with the fact that they did not provide and set up the arrangement needed for lodging that we had to do it on our own. I also feel there should’ve been Compensation for food.

Had to approach landing twice which caused concern but probably due to weather

This was my first time flying your airline and it was okay. The people were nice but I am not used to all the add ons and no movies or even water. But I knew it was going to be that way. I think I prefer paying for the extras to be more comfortable.

Plane did no snacks and had no wifi or entertainment although the flight was 4 hours long.

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

Information on your arrival and departure airports

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