Find flights
When to book
FAQs

Cheap flights from Ko Samui to Kathmandu from ฿32,339

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
USM — KTM
21 Mar — 28 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ko Samui to Kathmandu

Enter your travel dates to find the best prices.

Cheapest flights from Ko Samui to Kathmandu
Explore the most affordable flight options available from Ko Samui to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2026.

Sat 29/812:10
USM
-
KTM
2 stops34h 50m
Malaysia Airlines
Wed 2/913:00
KTM
-
USM
2 stops28h 55m
Malaysia Airlines
Deal found 17/2฿32,339
Sat 29/811:55
USM
-
KTM
1 stop11h 05m
Cathay Pacific
Wed 2/923:00
KTM
-
USM
1 stop19h 25m
Cathay Pacific
Deal found 17/2฿32,870
Mon 16/308:15
USM
-
KTM
2 stops25h 20m
Emirates
Sun 22/300:30
KTM
-
USM
2 stops30h 25m
Emirates
Deal found 16/2฿69,334

Find flight deals from Ko Samui to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 February 2026.

Round-trip from

฿69,334

One-way from

฿42,963
Emirates
  • Emirates
  • 16/3-22/3
  • 4 total stops
  • 55h 45m total
  • Ko Samui to Kathmandu
Search Deals
Emirates
  • Emirates
  • 16/3
  • 2 total stops
  • 40h 30m total
  • Ko Samui to Kathmandu
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 19 February 2026.
Use the filters below to find and compare flights from Ko Samui to Kathmandu that are best for you.

Fly from

Ko Samui

Fly to

Kathmandu

Route

Depart

Return

Price

Ko SamuiKathmandu

USM - KTM

USMKTM

Ko Samui

Mon 16/3

08:15-08:20

2 stops25h 20m

Kathmandu Tribhuvan

Sun 22/3

00:30-08:10

2 stops30h 25m

฿69,334

Ko SamuiKathmandu

USM - KTM

USMKTM

Ko Samui

Mon 16/3

08:15-23:30

2 stops40h 30m

฿42,963

Flights are sorted by cheapest return flights first.

Deals found on 15/2

Best time to book a flight from Ko Samui to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Ko Samui with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ko Samui to Kathmandu?

    Airlines like Emirates fly from Ko Samui to Kathmandu in about 25h 20m. The time it takes to get you to your destination can typically vary by up to . Ko Samui and Kathmandu are separated by a distance of 2536 km.

  • Can I find deals for flights from Ko Samui to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Ko Samui to Kathmandu flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ko Samui to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Kathmandu.

  • Can I find deals for business class flights from Ko Samui to Kathmandu?

    Yes. Cheapflights offers flight deals from Ko Samui to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ko Samui to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
Phuket City to Kathmandu flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ko Samui to Kathmandu?

Deals for Ko Samui to Kathmandu flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Kathmandu?

Cheapflights helps you find that perfect flight to Kathmandu from Ko Samui by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ko Samui to Kathmandu with no change fees?

Yes, we can. To see specific flights from Ko Samui to Kathmandu with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ko Samui to Kathmandu become cheaper?

Not ready to book yet? You can track prices for flights from Ko Samui to Kathmandu on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.