$567 Cheap Flights from Charleston (CHS) to Castries (SLU)

View $567 flight on Thu, Feb 5, 2026Opens in a new window

Popular airlines from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU)

Cheap Flights from Charleston to Castries (CHS-SLU)

Prices were available within the past 7 days and start at $567 for one-way flights and $1,215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, May 7 - Thu, May 14
CHS
Charleston
SLU
Castries
$1,215 Roundtrip, found 1 day ago
$1,215
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 7 from Charleston to Castries, returning Thu, May 14, priced at $1,215 found 1 day ago

Find the cheapest month to fly from Charleston (CHS) to Castries (SLU)

January is typically the cheapest month to fly

From $456 - $997 per traveler.

Alternative airports near Castries

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $537
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $537

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU) cost?
Snag a cheap one-way flight from $567 or cheap return flight from $1,215 from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU)?
May is the cheapest month to fly from CHS to SLU. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU)?
To find the cheapest airline flying from CHS to SLU, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU)?
Nonstop flights from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CHS to SLU?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change based on the season, airline and other factors.*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 George F. L. Charles Airport (SLU)?
To avoid possible delays on the Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 George F. L. Charles Airport (SLU) last-minute?
Last-minute bookings from CHS to SLU are typically more expensive. To secure the best rates, start looking for flights as soon as possible. That being said, if your travel plans are flexible, you may find a cheap fare right before you leave.
Is it cheaper to book a CHS to SLU flight and hotel package?
You can save money by securing a CHS to SLU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to George F. L. Charles Airport (SLU)?
If you booked your CHS to SLU flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Charleston Intl.
Destination airport
George F. L. Charles
Roundtrip price
$1,214
Distance
1769 mi

Book with confidence

Charleston to Castries Flights

The cheapest times to fly from Charleston to Castries

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 Castries are during the month of May. You can find some of the cheapest flights from Charleston to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Charleston to Castries

Sunday is one of the best days to book for cheap flights from Charleston to Castries: 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 Castries

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 Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $567 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 Castries 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 Castries 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 Castries Flights

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*Available to One Key members.