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Cheap flights from New Delhi to Ko Samui from ₹ 15,584

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEL — USM
12 Dec — 19 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from New Delhi to Ko Samui

Enter your travel dates to find the best prices.

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 12 November 2025.

Mon 24/1114:30DEL - USM
1 stop15h 10mMultiple Airlines
Sun 30/1118:15USM - DEL
1 stop7h 10mMultiple Airlines
Deal found 10/11₹ 39,581
Mon 1/1210:25DEL - USM
1 stop8h 55mMultiple Airlines
Fri 5/1208:15USM - DEL
1 stop14h 00mMultiple Airlines
Deal found 11/11₹ 39,670
Mon 22/1217:10DEL - USM
1 stop13h 25mMultiple Airlines
Fri 26/1207:00USM - DEL
1 stop10h 40mMultiple Airlines
Deal found 11/11₹ 41,529
Sun 21/1217:10DEL - USM
1 stop12h 35mMultiple Airlines
Fri 26/1207:00USM - DEL
1 stop10h 40mMultiple Airlines
Deal found 11/11₹ 41,618
Sat 20/1220:55DEL - USM
1 stop10h 15mMultiple Airlines
Fri 26/1207:00USM - DEL
1 stop10h 40mMultiple Airlines
Deal found 11/11₹ 43,123
Tue 23/1213:20DEL - USM
1 stop26h 00mMultiple Airlines
Wed 31/1218:15USM - DEL
1 stop19h 40mMultiple Airlines
Deal found 11/11₹ 43,566
Wed 10/1213:35DEL - USM
2 stops16h 55mMultiple Airlines
Sun 14/1219:00USM - DEL
2 stops22h 40mMultiple Airlines
Deal found 10/11₹ 43,743
Fri 28/1117:10DEL - USM
1 stop15h 45mMultiple Airlines
Sat 6/1209:20USM - DEL
1 stop12h 55mMultiple Airlines
Deal found 11/11₹ 44,186
Thu 13/1115:10DEL - USM
1 stop24h 50mMultiple Airlines
Sun 16/1118:15USM - DEL
1 stop19h 40mMultiple Airlines
Deal found 11/11₹ 44,717
Sat 29/1102:00DEL - USM
1 stop14h 55mMultiple Airlines
Fri 5/1208:15USM - DEL
1 stop14h 00mMultiple Airlines
Deal found 11/11₹ 45,160

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 12 November 2025.

Round-trip from

₹ 39,581

One-way from

₹ 15,584

Popular in

November

Cheapest in

August

Average price

₹ 73,229
24/11-30/11
  • 24/11-30/11
  • 2 total stops
  • 22h 20m total
  • New Delhi to Ko Samui
Search Deals
23/3
  • 23/3
  • 1 total stop
  • 12h 30m total
  • New Delhi to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (₹ 580,085 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (₹ 180,012 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 454,620 searches. Data last updated 12 November 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

Sun 21/12

22:00-10:25

2 stops10h 55m

Ko Samui

Fri 26/12

07:00-16:10

1 stop10h 40m

₹ 43,389

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 10/12

10:25-08:25

1 stop20h 30m

Ko Samui

Sun 14/12

19:00-16:10

2 stops22h 40m

₹ 46,930

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 20/12

20:55-08:40

1 stop10h 15m

Ko Samui

Wed 24/12

07:15-16:10

1 stop10h 25m

₹ 47,639

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 6/1

21:05-07:45

1 stop9h 10m

Ko Samui

Tue 20/1

15:50-23:55

1 stop9h 35m

₹ 49,144

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 30/12

20:55-10:25

1 stop12h 00m

Ko Samui

Thu 8/1

18:15-05:00

2 stops12h 15m

₹ 56,582

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 10/12

23:30-14:55

2 stops13h 55m

Ko Samui

Wed 17/12

19:00-12:25

1 stop18h 55m

₹ 57,025

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 31/12

10:25-20:45

1 stop8h 50m

Ko Samui

Mon 5/1

14:20-20:45

1 stop7h 55m

₹ 59,239

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 30/12

11:45-20:45

3 stops31h 30m

Ko Samui

Sat 3/1

14:20-18:05

3 stops29h 15m

₹ 60,301

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 31/12

00:20-10:55

1 stop9h 05m

Ko Samui

Mon 5/1

08:20-23:00

1 stop16h 10m

₹ 63,135

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 29/12

22:45-19:35

1 stop19h 20m

Ko Samui

Mon 5/1

11:40-12:25

1 stop26h 15m

₹ 76,328

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 19 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, October is the cheapest month in which you can book a flight from New Delhi to Ko Samui (average of ₹ 16,558). Flying from New Delhi to Ko Samui in November is currently the most expensive (average of ₹ 66,500). 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.

What is the cheapest time of day to fly from DEL to USM?

Find hourly flight availability from New Delhi to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 November 2025.

It’s optimal to fly from New Delhi to Ko Samui at midday. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. 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 Ko Samui. Reviews last updated 12 November 2025.
Check out reviews from past customers who have flown with Singapore Airlines, Thai Airways, andAir India from New Delhi to Ko Samui 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.
Singapore Airlines
8.1
Very Good
1,398 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.1

Food

7.7

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,398 reviews
Singapore Airlines
8.1
Very Good
1,398 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.1

Food

7.7

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Thai Airways
7.8
Good
361 reviews
Singapore Airlines
8.1
Very Good
1,398 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.1

Food

7.7

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Air India
5.5
Fair
2,940 reviews
Singapore Airlines
8.1
Very Good
1,398 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.1

Food

7.7

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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.

  • What are the cheapest airlines flying from New Delhi to Ko Samui round-trip?

    Currently priced at ₹ 32,905, Singapore Airlines will fly you from New Delhi to Ko Samui and back. In addition to Singapore Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air India and Thai Airways - these airlines can fly you to your destination from ₹ 40,055 and ₹ 50,067, respectively. Users have found that Singapore Airlines is 35% cheaper than the other options available to this destination.

  • 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, October is the cheapest month in which you can book a flight from New Delhi to Ko Samui (average of ₹ 16,558). Flying from New Delhi to Ko Samui in November is currently the most expensive (average of ₹ 66,500). 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 Phuket City flights
New Delhi to Krabi flights
New Delhi to Chiang Mai flights

Top 3 airlines flying from New Delhi to Ko Samui

Discover the top 3 airlines that operate flights from New Delhi to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 12 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest₹ 32,905Average₹ 44,356FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Air IndiaCheapest₹ 40,055Average₹ 46,984FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Thai AirwaysCheapest₹ 50,067Average₹ 68,361FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 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?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from New Delhi to Ko Samui.

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?

Of course! You can now track prices for flights from New Delhi to Ko Samui and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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