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₹ 21,671+ 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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
1 Apr — 8 Apr1
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

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 2 March 2026.

Wed 3/614:10
DEL
-
USM
1 stop15h 30m
Multiple Airlines
Tue 9/607:50
USM
-
DEL
1 stop7h 35m
Multiple Airlines
Deal found 27/2₹ 40,155
Tue 21/713:25
DEL
-
USM
1 stop17h 30m
Multiple Airlines
Fri 24/717:55
USM
-
DEL
1 stop7h 30m
Multiple Airlines
Deal found 27/2₹ 40,793
Mon 9/319:55
DEL
-
USM
2 stops23h 25m
Multiple Airlines
Mon 16/308:15
USM
-
DEL
2 stops15h 25m
Multiple Airlines
Deal found 27/2₹ 45,345
Mon 30/314:15
DEL
-
USM
3 stops27h 05m
Multiple Airlines
Mon 6/408:10
USM
-
DEL
1 stop14h 15m
Multiple Airlines
Deal found 28/2₹ 47,076
Mon 16/313:20
DEL
-
USM
1 stop17h 35m
Multiple Airlines
Sat 21/317:40
USM
-
DEL
1 stop9h 30m
Multiple Airlines
Deal found 1/3₹ 47,258
Wed 27/513:25
DEL
-
USM
1 stop17h 30m
Multiple Airlines
Mon 1/615:25
USM
-
DEL
1 stop21h 55m
Multiple Airlines
Deal found 28/2₹ 47,349
Thu 10/1211:05
DEL
-
USM
1 stop7h 40m
Multiple Airlines
Mon 14/1218:15
USM
-
DEL
1 stop19h 40m
Multiple Airlines
Deal found 1/3₹ 48,988

Find flight deals to Ko Samui

Find the latest flights to Ko Samui in 2026, 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 2 March 2026.

Return from

₹ 40,155

One-way from

₹ 21,671

Popular in

March

Cheapest in

August

Average price

₹ 72,480
3/6-9/6
  • 3/6-9/6
  • 2 total stops
  • 23h 05m total
  • New Delhi to Ko Samui
Search Deals
18/3
  • 18/3
  • 1 total stop
  • 17h 35m total
  • New Delhi to Ko Samui
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (₹ 10,417 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 1,903 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
Search Deals

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 2 March 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 27/5

13:25-08:25

1 stop17h 30m

Ko Samui

Mon 1/6

15:25-11:50

1 stop21h 55m

₹ 47,349

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 2/6

01:25-16:55

1 stop14h 00m

Ko Samui

Tue 9/6

15:25-23:55

1 stop10h 00m

₹ 50,991

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 3/6

21:55-18:50

1 stop19h 25m

Ko Samui

Tue 9/6

08:40-20:05

1 stop12h 55m

₹ 51,993

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 16/4

01:25-11:55

1 stop9h 00m

Ko Samui

Mon 20/4

17:50-01:35

1 stop9h 15m

₹ 52,084

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 9/5

09:00-07:45

1 stop21h 15m

Ko Samui

Wed 13/5

19:45-20:05

1 stop25h 50m

₹ 59,277

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 18/3

13:20-08:25

1 stop17h 35m

₹ 21,671

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 31/3

20:55-20:25

2 stops22h 00m

₹ 22,309

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 28/3

18:20-17:20

2 stops21h 30m

₹ 22,491

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 14/4

01:25-11:55

1 stop9h 00m

₹ 23,492

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 26/3

10:45-18:50

3 stops30h 35m

₹ 23,674

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 13 resultsSorted by cheapest first
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

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from New Delhi to Ko Samui are Air India and Thai Airways.

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 2 March 2026.
Read reviews from past customers who have flown Thai Airways and Air India to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
388 reviews
Check prices

Entertainment

6.8

Boarding

7.9

Crew

8.4

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.8
Good
388 reviews
Thai Airways
7.8
Good
388 reviews
Check prices

Entertainment

6.8

Boarding

7.9

Crew

8.4

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Air India
5.5
Fair
2,970 reviews
Thai Airways
7.8
Good
388 reviews
Check prices

Entertainment

6.8

Boarding

7.9

Crew

8.4

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

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 ₹ 8,852, while return flights cost around ₹ 32,988.

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

    For those looking to save time traveling to Ko Samui, Hyderabad Rajiv Gandhi Intl offers the quickest one-way flight (8 hours 5 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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Cheapflights makes it easy to find Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Ko Samui today and book when you’re ready!

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