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Cheap flights from New Delhi to Ko Samui from £164

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEL — USM
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from New Delhi to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from New Delhi (DEL) to Ko Samui (USM). 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 18 September 2025.

Round-trip from

£367

One-way from

£164

Popular in

December

Cheapest in

August

Average price

£416
Thai Airways
  • Thai Airways
  • 31/10-8/11
  • 2 total stops
  • 23h 15m total
  • New Delhi to Ko Samui
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7/2
  • 7/2
  • 1 total stop
  • 16h 10m total
  • New Delhi to Ko Samui
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from New Delhi to Ko Samui

Cheapest flights from New Delhi to Ko Samui
Explore the most affordable flight options available from New Delhi to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1000:20DEL - USM
1 stop7h 15mThai Airways
Sat 8/1108:30USM - DEL
1 stop16h 00mThai Airways
Deal found 17/9£367
Sat 1/1120:55DEL - USM
1 stop12h 00mMultiple Airlines
Sat 8/1112:00USM - DEL
2 stops35h 40mMultiple Airlines
Deal found 17/9£404
Wed 3/1221:50DEL - USM
1 stop21h 45mSingapore Airlines
Tue 9/1216:25USM - DEL
1 stop14h 45mSingapore Airlines
Deal found 16/9£698
Mon 1/1209:45DEL - USM
1 stop9h 50mSingapore Airlines
Fri 5/1213:25USM - DEL
1 stop17h 45mSingapore Airlines
Deal found 16/9£736
Fri 5/1209:45DEL - USM
1 stop9h 50mSingapore Airlines
Sun 7/1216:25USM - DEL
1 stop29h 05mSingapore Airlines
Deal found 16/9£758
Wed 3/1209:45DEL - USM
1 stop9h 50mSingapore Airlines
Thu 4/1216:25USM - DEL
1 stop29h 05mSingapore Airlines
Deal found 16/9£791
Thu 4/1209:45DEL - USM
1 stop9h 50mSingapore Airlines
Fri 5/1213:25USM - DEL
1 stop17h 45mSingapore Airlines
Deal found 16/9£798
Tue 30/1221:50DEL - USM
2 stops12h 10mMultiple Airlines
Tue 6/116:25USM - DEL
1 stop14h 45mMultiple Airlines
Deal found 16/9£1,065

Cheapflights Fare Finder

 
Customise your flight search to find flights from New Delhi to Ko Samui 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 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from New Delhi to Ko Samui that are best for you.

Fly from

New Delhi

Fly to

Ko Samui

Route

Depart

Return

Price

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 31/10

00:20-09:05

1 stop7h 15m

Ko Samui

Sat 8/11

08:30-23:00

1 stop16h 00m

£367

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 1/11

20:55-10:25

1 stop12h 00m

Ko Samui

Sat 8/11

12:00-22:10

2 stops35h 40m

£404

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 2/12

09:45-18:15

1 stop31h 00m

Ko Samui

Tue 9/12

16:25-05:40

1 stop14h 45m

£698

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 1/12

09:45-21:05

1 stop9h 50m

Ko Samui

Thu 4/12

16:25-20:00

1 stop29h 05m

£698

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 4/12

09:45-21:05

1 stop9h 50m

Ko Samui

Mon 8/12

16:25-20:00

1 stop29h 05m

£698

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 3/12

21:50-18:15

1 stop18h 55m

Ko Samui

Mon 8/12

16:25-20:00

1 stop29h 05m

£698

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 2/12

09:45-18:15

1 stop31h 00m

Ko Samui

Fri 5/12

13:25-05:40

1 stop17h 45m

£736

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 2/12

09:45-18:15

1 stop31h 00m

Ko Samui

Thu 4/12

16:25-20:00

1 stop29h 05m

£758

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 5/12

09:45-21:05

1 stop9h 50m

Ko Samui

Sun 7/12

16:25-20:00

1 stop29h 05m

£758

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 7/2

14:30-08:10

1 stop16h 10m

£164

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 13 results
1
2

Best time to book a flight from New Delhi to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from New Delhi 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.

Cheapflights Insights

Everything you need to know about your flight from New Delhi to Ko Samui

What is the cheapest month to book a flight from New Delhi to Ko Samui?

Currently, August is the cheapest month in which you can book a flight from New Delhi to Ko Samui (average of £1,019). Flying from New Delhi to Ko Samui in December is currently the most expensive (average of £1,669). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from New Delhi to Ko Samui. 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 New Delhi to Ko Samui?

    There are many flights that can get you from New Delhi to Ko Samui in 7h 15m. Fly via Thai Airways to get the fastest option. New Delhi and Ko Samui are separated by a distance of 1984 mi.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from New Delhi to Ko Samui?

    Currently, August is the cheapest month in which you can book a flight from New Delhi to Ko Samui (average of £1,019). Flying from New Delhi to Ko Samui in December is currently the most expensive (average of £1,669). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

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 New Delhi to Ko Samui

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

Fly with Cheapflights

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

Deals for New Delhi to Ko Samui 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 New Delhi to Ko Samui?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui from New Delhi.

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

Yes! Cheapflights helps users easily find flights from New Delhi to Ko Samui with no change fees.

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

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

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