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Flights from Koh Samui to Kathmandu
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Flights from Koh Samui to Kathmandu Starting at PHP 11,019

Discover our range of affordable one-way and round-trip flights from Koh Samui to Kathmandu and kick-start your next adventure today!

  • One way
  • Round-trip
      • USM18:55
        20h 20m
        1 stop
        KTM14:00
        Thu, May 15|Koh Samui - Kathmandu|Bangkok Airways
        PHP 11,019PHP 20,397
        46% OFF
        46% OFF
        PHP 20,397PHP 11,019

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Thu, May 15, arriving at Tribhuvan International Airport. One-way Prices start from PHP 11,019 including taxes and charges.

      • USM19:15
        20h
        1 stop
        KTM14:00
        Tue, Apr 29|Koh Samui - Kathmandu|Bangkok Airways
        PHP 12,737PHP 20,397
        38% OFF
        38% OFF
        PHP 20,397PHP 12,737

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Tue, Apr 29, arriving at Tribhuvan International Airport. One-way Prices start from PHP 12,737 including taxes and charges.

      • USM06:55
        8h 20m
        1 stop
        KTM14:00
        Sun, May 11|Koh Samui - Kathmandu|Bangkok Airways
        PHP 12,912PHP 20,397
        37% OFF
        37% OFF
        PHP 20,397PHP 12,912

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Sun, May 11, arriving at Tribhuvan International Airport. One-way Prices start from PHP 12,912 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Wed, Mar 19|Koh Samui - Kathmandu|Bangkok Airways
        PHP 14,447
        PHP 14,447

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Wed, Mar 19, arriving at Tribhuvan International Airport. One-way Prices start from PHP 14,447 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Mon, Mar 24|Koh Samui - Kathmandu|Bangkok Airways
        PHP 14,455
        PHP 14,455

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Mon, Mar 24, arriving at Tribhuvan International Airport. One-way Prices start from PHP 14,455 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Tue, Mar 25|Koh Samui - Kathmandu|Bangkok Airways
        PHP 14,862
        PHP 14,862

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Tue, Mar 25, arriving at Tribhuvan International Airport. One-way Prices start from PHP 14,862 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Sun, Mar 23|Koh Samui - Kathmandu|Bangkok Airways
        PHP 14,942
        PHP 14,942

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Sun, Mar 23, arriving at Tribhuvan International Airport. One-way Prices start from PHP 14,942 including taxes and charges.

      • USM06:55
        8h 20m
        1 stop
        KTM14:00
        Fri, May 2|Koh Samui - Kathmandu|Bangkok Airways
        PHP 15,158
        PHP 15,158

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Fri, May 2, arriving at Tribhuvan International Airport. One-way Prices start from PHP 15,158 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Mon, Mar 17|Koh Samui - Kathmandu|Bangkok Airways
        PHP 15,334
        PHP 15,334

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Mon, Mar 17, arriving at Tribhuvan International Airport. One-way Prices start from PHP 15,334 including taxes and charges.

      • USM06:45
        8h 30m
        1 stop
        KTM14:00
        Tue, Mar 18|Koh Samui - Kathmandu|Bangkok Airways
        PHP 15,382
        PHP 15,382

        Choose Bangkok Airways flights from Koh Samui to Kathmandu. The one-way connecting flight with Bangkok Airways departs from Samui International Airport on Tue, Mar 18, arriving at Tribhuvan International Airport. One-way Prices start from PHP 15,382 including taxes and charges.

      • USM01:00 pm
        3h 5m
        Nonstop
        KTM02:00 pm
        Sat, Mar 1|Koh Samui - Kathmandu|Bangkok Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Koh Samui to Kathmandu flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. PG450

    Bangkok Airways

    06:45

    USM

    1.6h

    08:20

    DMK

    SMTWTFS
    Search

  2. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  3. TR643

    Scoot

    12:10

    USM

    1.9h

    15:05

    SIN

    SMTWTFS
    Search

  4. TR468

    Scoot

    17:00

    SIN

    1.6h

    18:35

    KUL

    SMTWTFS

  5. OD184

    Batik Air Malaysia

    10:25

    KUL

    4.8h

    12:55

    KTM

    SMTWTFS

  6. TR643

    Scoot

    12:10

    USM

    1.9h

    15:05

    SIN

    SMTWTFS
    Search

  7. TR464

    Scoot

    21:00

    SIN

    1.2h

    22:10

    KUL

    ---WTFS

  8. OD184

    Batik Air Malaysia

    10:25

    KUL

    4.8h

    12:55

    KTM

    SMTWTFS

  9. PG140

    Bangkok Airways

    13:55

    USM

    1.3h

    15:10

    BKK

    -M-W-F-
    Search

  10. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  11. PG146

    Bangkok Airways

    15:30

    USM

    1.3h

    16:45

    BKK

    SMTWTFS
    Search

  12. MH781

    Malaysia Airlines

    19:40

    BKK

    2.2h

    22:50

    KUL

    SMTWTFS

  13. OD184

    Batik Air Malaysia

    10:25

    KUL

    4.8h

    12:55

    KTM

    SMTWTFS

  14. PG166

    Bangkok Airways

    17:25

    USM

    1.3h

    18:40

    BKK

    SMTWTFS
    Search

  15. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  16. PG176

    Bangkok Airways

    18:55

    USM

    1.5h

    20:25

    BKK

    SMTWTFS
    Search

  17. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  18. PG403

    Bangkok Airways

    19:00

    USM

    1.0h

    20:00

    HKT

    SMTWTFS
    Search

  19. FD3036

    Thai AirAsia

    07:55

    HKT

    1.3h

    09:15

    DMK

    SMTWTFS

  20. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  21. PG403

    Bangkok Airways

    19:00

    USM

    1.0h

    20:00

    HKT

    SMTWTFS
    Search

  22. FD3016

    Thai AirAsia

    23:45

    HKT

    1.4h

    01:11

    DMK

    SMTWTFS

  23. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS

  24. PG178

    Bangkok Airways

    20:30

    USM

    1.3h

    21:45

    BKK

    SMTWTFS
    Search

  25. FD182

    Thai AirAsia

    12:00

    DMK

    3.3h

    14:00

    KTM

    S-TWTFS
Find more flights and airlines

Find the best time to fly from Koh Samui to Kathmandu

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Kathmandu from Koh Samui have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • 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 PHP 40,167.

  • What is the transportation method from the main airport to downtown in Kathmandu?

    • The distance from Tribhuvan International Airport to downtown is about 3km, by taxi about 20 minutes.

  • 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

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
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 Thu, May 15, with one-way flights priced at just PHP 11019.
2
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.
3
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.
4
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.
5
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.
6
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.

Flight Information from Koh Samui to Kathmandu

Cheapest direct flight pricePHP 11,018
Off-season travel monthDecember
Peak season for travelMay
Flight distance2,538.4km
Popular airlineBangkok Airways

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