$548 Cheap Flights from Columbus (CMH) to Samui Intl. Airport (USM)

View $548 flight on Tue, Feb 17, 2026Opens in a new window

Popular airlines from John Glenn Columbus Intl. Airport (CMH) to Samui Intl. Airport (USM)

Cheap Flights from Columbus to Samui Intl. Airport (CMH-USM)

Prices were available within the past 7 days and start at $548 for one-way flights and $1,002 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Feb 17 - Tue, Feb 24
CMH
Columbus
USM
Koh Samui
$1,002 Roundtrip, found 6 days ago
$1,002
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 17 from Columbus to Koh Samui, returning Tue, Feb 24, priced at $1,002 found 6 days ago
United
Tue, Feb 17 - Tue, Feb 24
CMH
Columbus
USM
Koh Samui
$1,010 Roundtrip, found 6 days ago
$1,010
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 17 from Columbus to Koh Samui, returning Tue, Feb 24, priced at $1,010 found 6 days ago
United
Tue, Feb 17 - Tue, Feb 24
CMH
Columbus
USM
Koh Samui
$1,016 Roundtrip, found 6 days ago
$1,016
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 17 from Columbus to Koh Samui, returning Tue, Feb 24, priced at $1,016 found 6 days ago
United
Tue, Feb 17 - Tue, Feb 24
CMH
Columbus
USM
Koh Samui
$1,016 Roundtrip, found 6 days ago
$1,016
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 17 from Columbus to Koh Samui, returning Tue, Feb 24, priced at $1,016 found 6 days ago
United
Thu, Mar 12 - Thu, Mar 19
CMH
Columbus
USM
Koh Samui
$1,019 Roundtrip, found 1 day ago
$1,019
Roundtrip
found 1 day ago
Select United flight, departing Thu, Mar 12 from Columbus to Koh Samui, returning Thu, Mar 19, priced at $1,019 found 1 day ago
United
Wed, Aug 19 - Wed, Aug 26
CMH
Columbus
USM
Koh Samui
$1,024 Roundtrip, found 4 days ago
$1,024
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 19 from Columbus to Koh Samui, returning Wed, Aug 26, priced at $1,024 found 4 days ago
United
Tue, Feb 17 - Tue, Feb 24
CMH
Columbus
USM
Koh Samui
$1,024 Roundtrip, found 6 days ago
$1,024
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 17 from Columbus to Koh Samui, returning Tue, Feb 24, priced at $1,024 found 6 days ago
United
Wed, Aug 19 - Wed, Aug 26
CMH
Columbus
USM
Koh Samui
$1,027 Roundtrip, found 4 days ago
$1,027
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 19 from Columbus to Koh Samui, returning Wed, Aug 26, priced at $1,027 found 4 days ago
United
Wed, Aug 19 - Wed, Aug 26
CMH
Columbus
USM
Koh Samui
$1,032 Roundtrip, found 4 days ago
$1,032
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 19 from Columbus to Koh Samui, returning Wed, Aug 26, priced at $1,032 found 4 days ago
Cathay Pacific
Thu, Mar 12 - Thu, Mar 19
CMH
Columbus
USM
Koh Samui
$1,451 Roundtrip, found 1 day ago
$1,451
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Thu, Mar 12 from Columbus to Koh Samui, returning Thu, Mar 19, priced at $1,451 found 1 day ago

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM) cost?
Secure a cheap one-way flight from $548 or cheap return flight from $1,002 from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM) 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 John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM)?
Traveling in February may help you find better deals, as it's the cheapest month for flights between CMH and USM. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from CMH to USM. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM)?
Direct flights from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CMH to USM?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary 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 John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM)?
To arrive at Ko Samui Airport (USM) on schedule, opt for 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 time.**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 Ko Samui Airport (USM) last-minute?
Last-minute fares from CMH to USM are typically more expensive. For the best rates, start searching for flights well in advance. That said, if your travel plans are flexible, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a CMH to USM flight and hotel package?
Compared with arranging flights and hotels separately, booking a CMH to USM flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the stress out of travel planning. Simply pick your flights and select from our wide range of hotels, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from John Glenn Columbus Intl. Airport (CMH) to Ko Samui Airport (USM)?
It's usually possible to reschedule or cancel your CMH to USM flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
John Glenn Columbus Intl.
Destination airport
Samui Intl. Airport
Roundtrip price
$1,001
Distance
9007 mi

Book with confidence

Columbus to Samui Intl. Airport Flights

The cheapest times to fly from Columbus to Samui Intl. Airport

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 Samui Intl. Airport are during the month of February. You can find some of the cheapest flights from Columbus to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Columbus to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from Columbus to Samui Intl. Airport: 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 Samui Intl. Airport

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 Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $548 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 Samui Intl. Airport 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 Samui Intl. Airport 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 Samui Intl. Airport Flights
*Available to One Key members.