$444 Cheap Flights from Kathmandu (KTM) to Samui Intl. Airport (USM)

Popular airlines from Tribhuvan Intl. Airport (KTM) to Samui Intl. Airport (USM)

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Cheap Flights from Kathmandu to Samui Intl. Airport (KTM-USM)

Prices were available within the past 7 days and start at $444 for one-way flights and $828 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Thai Airways International
Thai Airways International
Singapore Airlines
Thai Airways International
Thai Airways International
Thai Airways International
Sichuan Airlines
Malaysia Airlines
Emirates
Flights from Kathmandu (KTM) to Samui Intl. Airport (USM)
Origin airport
Tribhuvan Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Cathay Pacific, Emirates, Malaysia Airlines, Singapore Airlines
Roundtrip price
$828
Distance
1577 mi

Kathmandu to Samui Intl. Airport Flights

The cheapest times to fly from Kathmandu 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 Kathmandu to Samui Intl. Airport are during the month of January. You can find some of the cheapest flights from Kathmandu to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Kathmandu 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 Kathmandu 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 Kathmandu to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $444 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 Kathmandu 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 Kathmandu 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.

 

Frequently asked questions

How much is a flight from Tribhuvan Intl. Airport to USM?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey between Tribhuvan Intl. Airport (KTM) and Samui Airport was $828. Cheap fares don't last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Tribhuvan Intl. Airport (KTM) to Ko Samui Airport?
Each airline has its own set of terms and conditions. If you decide to cancel your vacation, head to our Customer Service Portal.
How do I find cheap flights from Tribhuvan Intl. Airport to Samui Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Tribhuvan Intl. Airport to Samui Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Tribhuvan Intl. Airport (KTM) to Ko Samui Airport (USM)?
It's around 1554 mi from Kathmandu to Koh Samui, so expect to be strapped into your seat for a while. Keep yourself occupied by packing things like crossword puzzles or a thrilling novel.
Which airlines fly direct from Tribhuvan Intl. Airport (KTM) to Ko Samui Airport?
At present, no airlines offer flights directly from Tribhuvan Intl. Airport to Samui Airport. You'll have to book a flight with at least one stop. To get the best connections and price, lock in your airfare well in advance.
Are Tribhuvan Intl. Airport to Ko Samui Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab amazing last-minute deals from KTM to Ko Samui Airport (USM), but it's also possible to miss out altogether! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can feel confident knowing you're always getting the latest offers.

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*Available to One Key members.