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₹ 16,013+ Cheap flights to Ko Samui

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
17 Apr — 24 Apr1
1 adult

Flights to Ko Samui in 2025

Find the latest flights to Ko Samui in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 454,620 searches and data was last updated on 12 April 2025.

Return from

₹ 29,787

One-way from

₹ 16,013

Popular in

December

Cheapest in

October

Average price

₹ 55,872
Singapore Airlines
  • Singapore Airlines
  • 6/5-11/5
  • 2 total stops
  • 34h 15m total
  • New Delhi to Ko Samui
Search Deals
30/4
  • 30/4
  • 1 total stop
  • 12h 45m total
  • New Delhi to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (₹ 583,563 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (₹ 206,310 potential savings vs. average return price).
Search Deals
Average for return flights in April 2025
Search Deals

Find flight deals to Ko Samui

Cheapest flights to Ko Samui
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 12 April 2025.

Tue 6/509:00DEL - USM
1 stop21h 20mSingapore Airlines
Sun 11/508:45USM - DEL
1 stop12h 55mSingapore Airlines
Deal found 10/4₹ 29,787
Fri 6/617:05DEL - USM
1 stop12h 45mMultiple Airlines
Wed 11/608:00USM - DEL
2 stops15h 35mMultiple Airlines
Deal found 9/4₹ 33,919
Wed 23/414:30DEL - USM
1 stop15h 35mAir India
Sun 27/415:25USM - DEL
1 stop9h 50mAir India
Deal found 10/4₹ 40,548
Tue 17/623:35DEL - USM
2 stops13h 40mVietnam Airlines
Sat 21/608:20USM - DEL
2 stops15h 15mVietnam Airlines
Deal found 10/4₹ 67,839
Tue 6/518:45DEL - USM
2 stops13h 05mSriLankan Airlines
Sun 11/520:50USM - DEL
2 stops22h 25mSriLankan Airlines
Deal found 10/4₹ 72,057
Tue 22/403:20DEL - USM
1 stop26h 45mThai Airways
Sun 27/419:30USM - DEL
1 stop16h 35mThai Airways
Deal found 10/4₹ 168,564
Thu 14/806:20DEL - USM
2 stops37h 20mTurkish Airlines
Fri 29/813:30USM - DEL
2 stops40h 40mTurkish Airlines
Deal found 10/4₹ 178,206
Wed 23/401:00DEL - USM
1 stop16h 05mCathay Pacific
Mon 28/408:45USM - DEL
2 stops16h 35mCathay Pacific
Deal found 10/4₹ 244,150
Sat 19/404:10DEL - USM
2 stops27h 40mEmirates
Mon 21/417:55USM - DEL
2 stops22h 20mEmirates
Deal found 10/4₹ 287,712
Fri 18/409:10DEL - USM
2 stops20h 55mEtihad Airways
Mon 21/421:10USM - DEL
2 stops18h 20mEtihad Airways
Deal found 10/4₹ 295,460

Cheapflights Fare Finder

Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 454,620 searches and data was last updated on 12 April 2025.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

New Delhi

Route

Depart

Return

Price

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 6/5

09:00-07:50

1 stop21h 20m

Ko Samui

Sun 11/5

08:45-20:10

1 stop12h 55m

₹ 29,787

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 6/6

17:05-07:20

1 stop12h 45m

Ko Samui

Wed 11/6

08:00-22:05

2 stops15h 35m

₹ 33,919

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 23/4

14:30-07:35

1 stop15h 35m

Ko Samui

Sun 27/4

15:25-23:45

1 stop9h 50m

₹ 40,548

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 17/6

23:35-14:45

2 stops13h 40m

Ko Samui

Sat 21/6

08:20-22:05

2 stops15h 15m

₹ 67,839

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 6/5

18:45-09:20

2 stops13h 05m

Ko Samui

Sun 11/5

20:50-17:45

2 stops22h 25m

₹ 72,057

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 22/4

03:20-07:35

1 stop26h 45m

Ko Samui

Sun 27/4

19:30-10:35

1 stop16h 35m

₹ 168,564

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 14/8

06:20-21:10

2 stops37h 20m

Ko Samui

Fri 29/8

13:30-04:40

2 stops40h 40m

₹ 178,206

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 23/4

01:00-18:35

1 stop16h 05m

Ko Samui

Mon 28/4

08:45-23:50

2 stops16h 35m

₹ 244,150

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 23/4

16:20-16:55

2 stops23h 05m

Ko Samui

Sun 27/4

17:55-02:35

2 stops34h 10m

₹ 513,352

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 30/4

17:05-07:20

1 stop12h 45m

₹ 16,013

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 11 results
1
2

Best time to book a flight to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Ko Samui

When is the best time to book a flight to Ko Samui?

Use this chart to determine the optimal time to book a return flight from New Delhi to Ko Samui. Price data was last updated on 4 April 2025.

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights to Ko Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Ko Samui?

On average, a flight from New Delhi to Ko Samui takes 8 hours 15 minutes. Flights to Ko Samui from other popular cities in India will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Ko Samui?

The most popular airlines flying from New Delhi to Ko Samui are Thai Airways and Singapore Airlines.

Thai Airways

Thai Airways

From ₹ 540

Singapore Airlines

Singapore Airlines

From ₹ 300

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from New Delhi to Ko Samui are Singapore Airlines and Thai Airways.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 mm per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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 April 2025.
See what other customers who have flown with Singapore Airlines, Emirates and Thai Airways to Ko Samui have to say. 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
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very Good
1,288 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Emirates
8.0
Very Good
3,197 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Thai Airways
7.7
Good
322 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Vietnam Airlines
7.6
Good
194 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Cathay Pacific
7.5
Good
844 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

FAQs about flying to Ko Samui

  • What airport do you fly into for flights to Ko Samui?

    Booking a flight to Ko Samui (USM) is your only option if you intend on flying to Ko Samui. It is only a 3.3 km journey from Ko Samui to Ko Samui’s city centre.

  • Can I find cheaper flights to Ko Samui if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ko Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ko Samui?

    Based on reviews from Cheapflights users, Singapore Airlines is rated the highest out of the airlines that fly to Ko Samui.

  • What is the cheapest airport to fly to in Ko Samui?

    Ko Samui is currently the cheapest airport to fly to in Ko Samui. One-way flights to Ko Samui typically cost ₹ 5,683, while return flights cost around ₹ 11,490.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ₹ 261, however they can be found for as little as ₹ 133.

  • Where does the fastest flight to Ko Samui depart from?

    For those looking to save time traveling to Ko Samui, New Delhi Indira Gandhi Intl offers the quickest one-way flight (8 hours 15 minutes).

  • Does Ko Samui have rental cars?

    Yes. Those touching down at Ko Samui can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 km away from Ko Samui).

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 Tao
Ko Pha Ngan

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