$493 Cheap Flights from Columbus (CMH) to Castries (SLU)

View $493 flight on Wed, Aug 13, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Columbus to Castries (CMH-SLU)

Prices were available within the past 7 days and start at $493 for one-way flights and $1,179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 10 - Sat, Nov 15
CMH
Columbus
SLU
Castries
$1,179 Roundtrip, found 4 days ago
$1,179
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Columbus to Castries, returning Sat, Nov 15, priced at $1,179 found 4 days ago

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

May is typically the cheapest month to fly

From $495 - $1,360 per traveler.

Graph displaying average flight prices per month

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 $754
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $754
Flights from Columbus (CMH) to Vieux Fort (UVF)
Origin airport
John Glenn Columbus Intl.
Destination airport
Hewanorra Intl.
Roundtrip price
$517
Distance
2248 mi

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 November. 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 $493 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.

 

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to George F. L. Charles Airport (SLU) cost?
Discover the latest flight deals from CMH to SLU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CMH to SLU?
The cheapest flights from CMH to SLU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CMH to SLU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CMH to SLU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.

Explore a world of travel with Expedia

*Available to One Key members.