On this page, you can find and book flights from Kathmandu to Koh Samui. The distance between the cities is 2,536 km. We also recommend checking how to get to the airport of departure in advance and booking an airport transfer upon arrival.
Ticket prices change constantly depending on demand and availability. To choose the best flight, use the low price calendar and the price trend chart, which will help you find the best deal for your preferred dates.
Below is a calendar of the lowest flight ticket prices for Kathmandu — Koh Samui by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $275 in e, and the most expensive are around $418 in r. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
Kathmandu → Koh Samui, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | $537 | high | May | $460 | medium | Sep | $447 | medium |
| Feb | $549 | high | Jun | $422 | low | Oct | $383 | low |
| Mar | $562 | high | Jul | $524 | high | Nov | $370 | low |
| Apr | $511 | medium | Aug | $549 | high | Dec | $575 | high |
Some values are estimated based on seasonality.
The island's climate remains hot year-round: peak temperatures are recorded in May (around 29.8°C), while November is considered the rainiest period. February and March are the driest months, with the maximum number of sunny days.
The lowest flight cost is recorded in October, starting $275. During the peak season in December, the price increases to starting from $418 due to high tourist demand during the holidays.
July can be considered the optimal time for a trip: ticket prices start $336 with moderate rainfall. We recommend avoiding November if you wish to skip the tropical rainy season.
Flights between these cities are operated by several airlines, including regional leaders and international low-cost carriers. Most routes involve a connection, and flights are most commonly operated with a single layover. You can view the detailed schedule, departure times, and choose a suitable carrier in the list below.
Flights Kathmandu — Koh Samui depart from Tribhuvan International Airport and arrive at Koh Samui Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
The net travel time for a direct flight over a distance of 2,536 km would be about 3 hours. However, since there are no direct flights, the total travel time, including connections, usually ranges from 6 to 12 hours.
Various carriers operate on this route, offering connecting flights. The current list of airlines and the number of flights per week are available in the interactive block on this page.
Currently, there are no regular direct flights between Kathmandu and Koh Samui; the trip is made with one or more connections at major regional transit hubs.
The most favorable deals usually appear when booking 2–3 months before departure. Keep an eye on the current minimum prices in the low price calendar on this page.
Flights arrive at Koh Samui International Airport (USM), which is located in close proximity to the main tourist areas and beaches.
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