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Cheap Flights from Charleston (CHS) to Islip (ISP)

Compare Charleston to Islip flight deals

Find the cheapest month or even day of the year to fly to Islip

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Flight deals from Charleston to Islip

Looking for a cheap last-minute deal or the best return flight from Charleston to Islip? Find the lowest prices on one-way and return tickets right here.
Islip.$119 per passenger.Departing Wed, 17 Sep, returning Mon, 22 Sep.Return flight with Breeze Airways.Outbound direct flight with Breeze Airways departs from Charleston on Wed, 17 Sep, arriving in Islip.Inbound direct flight with Breeze Airways departs from Islip on Mon, 22 Sep, arriving in Charleston.Price includes taxes and charges.From $119, select.
Islip.$318 per passenger.Departing Sat, 2 Aug, returning Mon, 4 Aug.Return flight with Breeze Airways.Outbound direct flight with Breeze Airways departs from Charleston on Sat, 2 Aug, arriving in Islip.Inbound direct flight with Breeze Airways departs from Islip on Mon, 4 Aug, arriving in Charleston.Price includes taxes and charges.From $318, select.
Islip.$413 per passenger.Departing Fri, 25 Jul, returning Mon, 28 Jul.Return flight with Breeze Airways.Outbound direct flight with Breeze Airways departs from Charleston on Fri, 25 Jul, arriving in Islip.Inbound direct flight with Breeze Airways departs from Islip on Mon, 28 Jul, arriving in Charleston.Price includes taxes and charges.From $413, select.
Islip.$484 per passenger.Departing Thu, 31 Jul, returning Mon, 4 Aug.Return flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Charleston on Thu, 31 Jul, arriving in Islip.Inbound indirect flight with Breeze Airways, departs from Islip on Mon, 4 Aug, arriving in Charleston.Price includes taxes and charges.From $484, select.
Islip.$531 per passenger.Departing Sat, 11 Oct, returning Tue, 14 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Charleston on Sat, 11 Oct, arriving in Islip.Inbound indirect flight with Southwest Airlines, departs from Islip on Tue, 14 Oct, arriving in Charleston.Price includes taxes and charges.From $531, select.

Find the cheapest month to fly from Charleston to Islip

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Charleston to Islip flights are currently cheapest in September.
Jul
from $413
Aug
from $318
Sep
from $119
Oct
from $531
Nov
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Dec
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Direct flights from Charleston to Islip

Charleston to Islip: Alternative routes

Compare routes from Charleston to Islip below. You may find an airport to fly into that's cheaper, faster, or easier than Islip.

Charleston to Islip: Flight information

The things to know before you go.
Cheapest flight found$119
Cheapest month to flySeptember
Average flight time1 hr, 54 mins
Most popular airlineBreeze Airways
Average flights per week3

Finding cheap flights from Charleston to Islip: Frequently asked questions

The best price we found for a return flight from Charleston to Islip is $119. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 54 minutes is the average flight time from Charleston to Islip.
Breeze Airways flies direct from Charleston to Islip.
As of July 2025, there are 3 flights per week flying from Charleston to Islip.
The cheapest month to fly from Charleston to Islip is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Charleston Airport to Islip Airport on Wednesday, 17 September 2025.
Yes – the average flight time is 1 hour and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Islip but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Islip is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Breeze Airways offers the cheapest flight tickets to Islip.

Flying from Charleston International Airport (CHS) to Long Island MacArthur Airport (ISP): what you need to know

  • The average length of a direct flight from Charleston International Airport to Long Island MacArthur Airport is 1 hour 55 minutes.

  • Your CHS to ISP flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • During popular months like July, you'll want to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're flying during a peak period in general.

  • Breeze Airways is your gateway to exploring Islip (and maybe even some other exciting corners of United States!). Check out the direct flights from Charleston International Airport to Long Island MacArthur Airport offered by this popular carrier.

  • Most passengers choose to travel with Breeze Airways on this route.

  • If you want to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from Charleston International Airport to Long Island MacArthur Airport. These are the most popular stopovers between CHS and ISP:

    • Baltimore/Wash International Thurgood Marshall Airport

    • Orlando International Airport

    • Palm Beach International Airport

How to find the cheapest flights from Charleston International Airport (CHS) to Long Island MacArthur Airport (ISP)

  • Right now, $137 is the lowest price we've found for a one-way Charleston International Airport to Long Island MacArthur Airport flight. The best price for a return ticket is $119. Bear in mind that fares could change due to availability when booking.

  • Book nine months before you want to fly. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from CHS to ISP.

  • August is the cheapest month for flights from Charleston International Airport to Long Island MacArthur Airport. If you want to travel during a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.

  • Never miss a deal on cheap flights from CHS to ISP by creating a Price Alert. We'll send you an email or notification on the app when a special offer becomes available.

  • Select your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Charleston International Airport to Long Island MacArthur Airport.

Handy information about Charleston International Airport (CHS)

  • Charleston International Airport maintains a solid on-time performance, reducing the likelihood of delays. Departures from CHS arrive on schedule 81.5% of the time.

  • To get to Charleston International Airport from central Charleston, it'll take around 30 minutes if you're planning to drive. This depends on traffic, however. It's approximately 21 kilometres from the airport to the city centre.

  • The trip on public transport usually takes 3 hours 35 minutes.

  • Get your travels off to a hassle-free start by staying near CHS. Whether you've booked an early flight from Charleston International Airport to Long Island MacArthur Airport or just don't like being rushed, these stays are perfect:

Arriving at Long Island MacArthur Airport (ISP)

  • If you're getting in on a late Charleston International Airport to Long Island MacArthur Airport flight, few things top the convenience of being close to the terminal. Collect your bags from the carousel and then be showered and snoozing not long after at one of these accommodation options near ISP:

  • Grab a Long Island MacArthur Airport rental car and discover Islip and beyond with your own set of wheels. Enterprise, Budget and Avis are popular providers to choose from here.

  • Book your vehicle from Long Island MacArthur Airport at least a few weeks before your departure to get the lowest price. If you're planning to travel during a busy period, it's wise to book even earlier.

Getting from Long Island MacArthur Airport (ISP) to central Islip

  • ISP is located at 100 Arrivals Avenue.

  • Long Island MacArthur Airport to central Islip has a drive time of about 15 minutes. It's approximately 16 kilometres away.

  • It'll take around 1 hour 10 minutes when travelling by public transport.

When to fly to Long Island MacArthur Airport (ISP)

  • It's time to pick your travel dates for your flight from Charleston International Airport to Long Island MacArthur Airport. August is the busiest month to head to Islip. If you want a quieter vibe, go in May.

  • Book your flight from Charleston International Airport to Long Island MacArthur Airport for July if you want to go to Islip during its warmest month. Expect temperatures of between 19ºC (66ºF) and 29ºC (84ºF).

  • Search for cheap tickets from CHS to ISP in January if you like cooler conditions. Temperatures are at their lowest then, ranging between -4ºC (25ºF) and 8ºC (46ºF) on average.

Explore more of United States

  • Islip has loads to offer, but there are so many other parts of United States just waiting to be discovered. Around 64 kilometres west of Islip, a trip to New York will keep you busy. Start with popular sights like Statue of Liberty, Central Park and Empire State Building.

  • Around 193 kilometres south-west of Islip, Philadelphia is another favourite stop in United States. No visit is complete without checking out Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Plan the rest of your trip from Charleston to Islip

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.