$511 Cheap Flights from Columbus (CMH) to Castries (SLU)

View $511 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)

Cheap Flights from Columbus to Castries (CMH-SLU)

Prices were available within the past 7 days and start at $511 for one-way flights and $1,496 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Mar 11 - Thu, Mar 19
CMH
Columbus
SLU
Castries
$1,496 Roundtrip, found 3 days ago
$1,496
Roundtrip
found 3 days ago
Select United flight, departing Wed, Mar 11 from Columbus to Castries, returning Thu, Mar 19, priced at $1,496 found 3 days ago

Find the cheapest month to fly from Columbus (CMH) to Castries (SLU)

May is typically the cheapest month to fly

From $495 - $985 per traveler.

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU) cost?
Lock in a cheap one-way flight from $511 or cheap return flight from $1,496 from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)?
The cheapest month to fly from CMH to SLU is March, when there's less demand. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest CMH to SLU flight.
How many flights per day from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)?
You'll need to hop on a flight with a layover if you're traveling from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from CMH to SLU?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)?
To arrive at George F. L. Charles Airport (SLU) on time, pick a flight that takes off from John Glenn Columbus Intl. Airport (CMH) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU) last-minute?
Holding off until just before your trip to book a ticket from CMH to SLU often results in higher prices. Although you may find some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of landing a bargain.
Is it cheaper to book a CMH to SLU flight and hotel package?
You'll generally save money by booking a CMH 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 easy to manage it all in one place. After choosing your ideal accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU)?
In most cases, you can modify or cancel your CMH to SLU flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
John Glenn Columbus Intl.
Destination airport
George F. L. Charles
Roundtrip price
$1,496
Distance
2230 mi

Book with confidence

Book with confidence

Columbus to Castries Flights

The cheapest times to fly from Columbus 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 Columbus to Castries are during the month of March. You can find some of the cheapest flights from Columbus to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Columbus to Castries

Sunday is one of the best days to book for cheap flights from Columbus 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 Columbus 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 Columbus to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $511 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 Columbus 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 Columbus 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.

 

Columbus to Castries Flights

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*Available to One Key members.