₹ 18,902+ 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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
22 Aug — 29 Aug1
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 17 August 2025.

Return from

₹ 39,729

One-way from

₹ 19,602

Popular in

December

Cheapest in

August

Average price

₹ 31,591
29/9-6/10
  • 29/9-6/10
  • 4 total stops
  • 50h 10m total
  • New Delhi to Ko Samui
9/10
  • 9/10
  • 1 total stop
  • 19h 35m total
  • New Delhi to Ko Samui
Highest demand for flights based on searches. 17% potential increase in price (₹ 902,315 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (₹ 236,168 potential savings vs. average return price).
Average for return flights in August 2025

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 17 August 2025.

Mon 29/905:40DEL - USM
2 stops35h 20mMultiple Airlines
Mon 6/1008:45USM - DEL
2 stops14h 50mMultiple Airlines
Deal found 15/8₹ 39,729
Tue 30/914:20DEL - USM
3 stops26h 40mMultiple Airlines
Tue 7/1017:40USM - DEL
2 stops29h 55mMultiple Airlines
Deal found 16/8₹ 43,142
Wed 1/1004:55DEL - USM
3 stops25h 25mMultiple Airlines
Wed 8/1008:45USM - DEL
2 stops28h 00mMultiple Airlines
Deal found 16/8₹ 43,492
Wed 3/909:25DEL - USM
1 stop7h 05mMultiple Airlines
Sun 7/908:45USM - DEL
1 stop16h 40mMultiple Airlines
Deal found 16/8₹ 43,754
Tue 2/909:25DEL - USM
1 stop9h 30mMultiple Airlines
Sat 6/914:30USM - DEL
1 stop6h 55mMultiple Airlines
Deal found 16/8₹ 43,842

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 17 August 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

Mon 29/9

05:40-18:30

2 stops35h 20m

Ko Samui

Mon 6/10

08:45-22:05

2 stops14h 50m

₹ 39,729

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 1/10

08:30-18:30

2 stops32h 30m

Ko Samui

Wed 8/10

12:05-22:05

2 stops11h 30m

₹ 39,729

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 30/9

14:20-18:30

3 stops26h 40m

Ko Samui

Tue 7/10

17:40-22:05

2 stops29h 55m

₹ 43,142

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 3/9

09:25-18:00

1 stop7h 05m

Ko Samui

Sun 7/9

08:45-23:55

1 stop16h 40m

₹ 43,754

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 2/9

09:25-20:25

1 stop9h 30m

Ko Samui

Sat 6/9

14:30-19:55

1 stop6h 55m

₹ 43,842

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 9/10

10:15-07:20

1 stop19h 35m

₹ 19,602

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 29/9

14:30-07:35

1 stop15h 35m

₹ 21,265

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 27/8

12:55-19:10

1 stop28h 45m

₹ 23,015

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 1/10

14:30-07:20

1 stop15h 20m

₹ 24,065

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 7/2

14:30-07:10

1 stop15h 10m

₹ 25,990

Flights are sorted by cheapest return flights first.

Deals found on 17/8

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

How long is the flight to Ko Samui?

On average, a flight from New Delhi to Ko Samui takes 7 hours 55 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 cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from New Delhi to Ko Samui are Singapore Airlines, Air India 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 17 August 2025.
Read reviews from past customers who have flown Singapore Airlines, Thai Airways, andAir India to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Overall

8.1

Food

7.7

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.

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Overall

8.1

Food

7.7

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.

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Overall

8.1

Food

7.7

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.

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Overall

8.1

Food

7.7

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.

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 ₹ 5,986, while return flights cost around ₹ 12,243.

  • 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 (7 hours 55 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 Pha Ngan
Ko Tao

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