Cheap Flights from Koh Samui to Kathmandu
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Flights from Koh Samui to Kathmandu
Airlines Flying from Koh Samui to Kathmandu
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Flight deals from Koh Samui to Kathmandu
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Tue, Jul 8 | Bangkok Airways
KTM 15:0015h 20m1 stopsUSM 07:35Kathmandu - Koh Samui | Tue, Jul 15 | Thai AirAsiaHK$3,345 HK$8,02157% OFF57% OFFHK$8,021 HK$3,345 -
USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Mon, Jul 7 | Bangkok Airways
KTM 15:0015h 5m1 stopsUSM 07:20Kathmandu - Koh Samui | Mon, Jul 14 | Thai AirAsiaHK$3,974 HK$8,02150% OFF50% OFFHK$8,021 HK$3,974
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Mon, Jun 9 | Bangkok Airways
KTM 15:0015h 5m1 stopsUSM 07:20Kathmandu - Koh Samui | Mon, Jun 16 | Thai AirAsiaHK$4,048 HK$8,02150% OFF50% OFFHK$8,021 HK$4,048
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Sat, Jun 28 | Bangkok Airways
KTM 15:0015h 20m1 stopsUSM 07:35Kathmandu - Koh Samui | Sun, Jul 6 | Thai AirAsiaHK$4,23147% OFFHK$8,021 HK$4,231
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Fri, May 30 | Bangkok Airways
KTM 15:0027h 30m1 stopsUSM 19:45Kathmandu - Koh Samui | Fri, Jun 6 | Thai AirAsiaHK$4,66642% OFFHK$8,021 HK$4,666
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Fri, Jul 11 | Bangkok Airways
KTM 15:0025h 30m1 stopsUSM 17:45Kathmandu - Koh Samui | Fri, Jul 18 | Thai AirAsiaHK$4,96138% OFFHK$8,021 HK$4,961
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Sun, Jun 8 | Bangkok Airways
KTM 23:3016h 5m1 stopsUSM 16:50Kathmandu - Koh Samui | Fri, Jun 13 | Thai AirwaysHK$5,42432% OFFHK$8,021 HK$5,424
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USM 07:006h 40m1 stopsKTM 12:25Koh Samui - Kathmandu | Mon, Jul 7 | Thai Airways
KTM 00:256h 55m1 stopsUSM 08:35Kathmandu - Koh Samui | Mon, Jul 14 | Thai AirwaysHK$5,49931% OFFHK$8,021 HK$5,499 -
USM 06:558h 10m1 stopsKTM 13:50Koh Samui - Kathmandu | Sun, Jun 1 | Bangkok Airways
KTM 23:307h 30m1 stopsUSM 08:15Kathmandu - Koh Samui | Sun, Jun 8 | Thai AirwaysHK$5,83727% OFFHK$8,021 HK$5,837
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USM 08:0015h 45m1 stopsKTM 22:30Koh Samui - Kathmandu | Mon, Jun 9 | Thai Airways
KTM 13:306h 50m1 stopsUSM 21:35Kathmandu - Koh Samui | Mon, Jun 16 | Thai AirwaysHK$6,01625% OFFHK$8,021 HK$6,016
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USM 13:0017h 25m1 stopsKTM Invalid DateKoh Samui - Kathmandu | Sun, Jun 1 | Normal Airline
KTM 15:006hDirectUSM 16:00Kathmandu - Koh Samui | Tue, Jun 3 | Normal AirlineFind More FlightsFind More Flights
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Mon, Jun 30 | Bangkok AirwaysHK$1,604 HK$2,78742% OFF42% OFFHK$2,787 HK$1,604
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USM 19:1020h 5m1 stopsKTM 14:00Koh Samui - Kathmandu | Tue, Jun 17 | Bangkok AirwaysHK$1,641 HK$2,78741% OFF41% OFFHK$2,787 HK$1,641
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Sat, Jun 28 | Bangkok AirwaysHK$1,691 HK$2,78739% OFF39% OFFHK$2,787 HK$1,691
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USM 06:558h 10m1 stopsKTM 13:50Koh Samui - Kathmandu | Tue, Jun 10 | Bangkok AirwaysHK$1,73938% OFFHK$2,787 HK$1,739
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Mon, Jun 9 | Bangkok AirwaysHK$1,80235% OFFHK$2,787 HK$1,802
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Fri, May 30 | Bangkok AirwaysHK$1,82834% OFFHK$2,787 HK$1,828
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Mon, Jun 23 | Bangkok AirwaysHK$1,83434% OFFHK$2,787 HK$1,834
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Wed, Jun 11 | Bangkok AirwaysHK$1,83734% OFFHK$2,787 HK$1,837
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Sun, Jun 8 | Bangkok AirwaysHK$1,95730% OFFHK$2,787 HK$1,957
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USM 06:558h 20m1 stopsKTM 14:00Koh Samui - Kathmandu | Fri, Jun 6 | Bangkok AirwaysHK$2,09125% OFFHK$2,787 HK$2,091
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USM 13:0017h 25m1 stopsKTM Invalid DateKoh Samui - Kathmandu | Sun, Jun 1 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Information from Koh Samui to Kathmandu
| Cheapest one-way flight price | HK$1,603 |
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| Off-season travel month | March |
| Peak season for travel | June |
| Flight distance | 2,538.4km |
| Popular airline | Cathay Pacific |
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
FAQ
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When are flight tickets from Koh Samui (USM) to Kathmandu (KTM) the cheapest?
Airlines adjust prices for flights from Koh Samui to Kathmandu based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from Koh Samui (USM) to Kathmandu (KTM) cost?
According to Trip.com's data, the lowest price is around HK$4,706. -
How many airports in Kathmandu (KTM)?
There are 1 airport(s) in Kathmandu (KTM): Tribhuvan International Airport.
How to find a cheap flight from Koh Samui to Kathmandu
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Koh Samui to Kathmandu. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from Koh Samui to Kathmandu.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Koh Samui to Kathmandu over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Mon, Jun 30, with one-way flights priced at just HK$1604.
Compare cheap flight deals from Koh Samui to Kathmandu across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Koh Samui to Kathmandu. The cheapest airline for this route is Bangkok Airways.
Set up a Price Alert
By setting up a Price Alert for your journey from Koh Samui to Kathmandu, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from Koh Samui to Kathmandu.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Koh Samui to Kathmandu and snag some exclusive deals just for you.
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