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Cheap flights from Ko Samui to Kathmandu from ฿30,065

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
USM — KTM
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 November 2025.

Round-trip from

฿30,065
Thai Airways
  • Thai Airways
  • 24/1-27/1
  • 2 total stops
  • 25h 10m total
  • Ko Samui to Kathmandu
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Best flights from Ko Samui to Kathmandu
Discover carefully curated flight deals from Ko Samui to Kathmandu that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 November 2025.

Sat 24/119:00USM - KTM
1 stop18h 40mThai Airways
Tue 27/100:25KTM - USM
1 stop6h 30mThai Airways
Deal found 19/11฿30,065
Sat 24/115:05USM - KTM
2 stops31h 40mMalaysia Airlines
Wed 28/113:00KTM - USM
2 stops17h 50mMalaysia Airlines
Deal found 18/11฿34,346

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 21 November 2025.
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

Sat 24/1

19:00-12:25

1 stop18h 40m

Kathmandu Tribhuvan

Tue 27/1

00:25-08:10

1 stop6h 30m

฿30,065

Ko SamuiKathmandu

USM - KTM

USMKTM

Ko Samui

Sat 24/1

15:05-21:30

2 stops31h 40m

Kathmandu Tribhuvan

Wed 28/1

13:00-08:05

2 stops17h 50m

฿34,346

Flights are sorted by cheapest return flights first.

Deals found on 19/11

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 Thai Airways and Malaysia Airlines fly from Ko Samui to Kathmandu in about 18h 40m. The time it takes to get you to your destination can typically vary by up to 13h. Ko Samui and Kathmandu are separated by a distance of 2536 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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

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

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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.

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