Popular airlines from Charleston Intl. Airport (CHS) to Kos (KGS-Kos Island Intl.)

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Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS) cost?
Lock in a cheap one-way flight or cheap return flight from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS)?
The cheapest month to fly from CHS to KGS is , when there's less demand. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest CHS to KGS flight.
How many flights per day from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS)?
Nonstop flights from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CHS to KGS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS)?
Choose a flight from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS) last-minute?
Holding off until just before your trip to book your flight from CHS to KGS often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a CHS to KGS flight and hotel package?
Opting for a CHS to KGS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Kos Island Intl. Airport (KGS)?
Usually, it's possible to cancel or reschedule your CHS to KGS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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Charleston to Kos Flights

The cheapest times to fly from Charleston to Kos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Charleston to Kos are during the month of . You can find some of the cheapest flights from Charleston to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Charleston to Kos

Sunday is one of the best days to book for cheap flights from Charleston to Kos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Charleston to Kos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Charleston to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Charleston to Kos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Charleston to Kos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Charleston to Kos Flights

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*Available to One Key members.