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Cheap flights from Ko Samui to Kathmandu from ฿18,905

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — KTM
15 Jul — 22 Jul1
1 adult

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 10 July 2025.

Round-trip from

฿18,905
26/11-28/11
  • 26/11-28/11
  • 2 total stops
  • 15h 15m total
  • Ko Samui to Kathmandu

Find flight deals from Ko Samui to Kathmandu

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 10 July 2025.

Wed 26/1106:45USM - KTM
1 stop7h 50mMultiple Airlines
Fri 28/1111:10KTM - USM
1 stop7h 25mMultiple Airlines
Deal found 8/7฿18,905
Tue 25/1111:45USM - KTM
1 stop11h 20mSingapore Airlines
Fri 28/1123:05KTM - USM
1 stop18h 10mSingapore Airlines
Deal found 8/7฿42,609

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 10 July 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

Wed 26/11

06:45-13:20

1 stop7h 50m

Kathmandu Tribhuvan

Mon 1/12

11:10-20:25

1 stop8h 00m

฿18,905

Ko SamuiKathmandu

USM - KTM

USMKTM

Ko Samui

Tue 25/11

11:45-21:50

1 stop11h 20m

Kathmandu Tribhuvan

Fri 28/11

23:05-18:30

1 stop18h 10m

฿42,609

Flights are sorted by cheapest return flights first.

Deals found on 8/7

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.

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated 10 July 2025.
Check out reviews from past customers who have flown with Singapore Airlines from Ko Samui to Kathmandu to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

8.0

Overall

8.1

Food

7.7

Comfort

7.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Entertainment

8.0

Overall

8.1

Food

7.7

Comfort

7.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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.
  • 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.

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Alternative routes for Ko Samui to Kathmandu

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