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₹ 21,395+ 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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
14 May — 21 May1
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 14 April 2026.

Fri 4/923:20
DEL
-
USM
2 stops13h 05m
Multiple Airlines
Fri 11/910:05
USM
-
DEL
1 stop11h 05m
Multiple Airlines
Deal found 9/4₹ 48,233
Fri 4/921:55
DEL
-
USM
1 stop19h 25m
Singapore Airlines
Fri 11/908:40
USM
-
DEL
1 stop12h 55m
Singapore Airlines
Deal found 9/4₹ 49,828
Wed 6/511:50
DEL
-
USM
3 stops29h 55m
Multiple Airlines
Sun 10/507:50
USM
-
DEL
1 stop8h 25m
Multiple Airlines
Deal found 13/4₹ 50,297
Tue 28/411:55
DEL
-
USM
3 stops29h 50m
Multiple Airlines
Wed 6/507:50
USM
-
DEL
3 stops31h 40m
Multiple Airlines
Deal found 13/4₹ 51,048
Tue 28/411:55
DEL
-
USM
3 stops29h 50m
Multiple Airlines
Fri 1/519:00
USM
-
DEL
1 stop8h 35m
Multiple Airlines
Deal found 13/4₹ 51,799
Mon 11/513:25
DEL
-
USM
1 stop26h 00m
Multiple Airlines
Thu 14/511:25
USM
-
DEL
1 stop25h 55m
Multiple Airlines
Deal found 14/4₹ 53,112
Tue 17/1121:45
DEL
-
USM
1 stop19h 35m
Singapore Airlines
Mon 23/1112:00
USM
-
DEL
1 stop19h 10m
Singapore Airlines
Deal found 12/4₹ 53,863
Tue 17/1121:45
DEL
-
USM
2 stops12h 35m
Multiple Airlines
Mon 23/1112:00
USM
-
DEL
1 stop9h 30m
Multiple Airlines
Deal found 12/4₹ 54,238

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 14 April 2026.

Return from

₹ 50,297

One-way from

₹ 21,395
6/5-10/5
  • 6/5-10/5
  • 4 total stops
  • 38h 20m total
  • New Delhi to Ko Samui
Search Deals
13/5
  • 13/5
  • 2 total stops
  • 25h 45m total
  • New Delhi to Ko Samui
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 14 April 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 11/5

13:25-16:55

1 stop26h 00m

Ko Samui

Thu 14/5

11:25-11:50

1 stop25h 55m

₹ 53,112

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 12/5

01:25-18:00

1 stop15h 05m

Ko Samui

Wed 20/5

19:00-11:50

1 stop18h 20m

₹ 54,989

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 5/5

18:45-17:05

2 stops20h 50m

Ko Samui

Fri 8/5

19:00-11:50

1 stop18h 20m

₹ 56,021
Fastest return journey

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Tue 28/4

06:50-19:15

1 stop10h 55m

Ko Samui

Wed 6/5

11:25-02:05

1 stop16h 10m

₹ 56,209

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 3/6

13:25-11:55

1 stop21h 00m

Ko Samui

Wed 10/6

12:10-23:55

1 stop13h 15m

₹ 58,836

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 13/5

09:00-07:45

1 stop21h 15m

Ko Samui

Sun 17/5

17:50-05:40

2 stops13h 20m

₹ 58,836

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 23/4

23:00-20:15

2 stops19h 45m

Ko Samui

Thu 30/4

08:45-21:50

2 stops14h 35m

₹ 71,880

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 4/5

23:00-21:35

2 stops21h 05m

Ko Samui

Tue 12/5

10:05-21:50

2 stops13h 15m

₹ 76,572

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Wed 27/5

09:00-07:45

1 stop21h 15m

Ko Samui

Mon 1/6

08:45-20:05

2 stops12h 50m

₹ 76,572
Cheapest one-way
Fastest single journey

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 27/4

17:10-07:10

1 stop12h 30m

₹ 21,489

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 15 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 airline flying from New Delhi to Ko Samui is Air India.

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 14 April 2026.
Read reviews from past customers who have flown Air India to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air India
5.5
Fair
2,968 reviews
Check prices

Food

5.8

Entertainment

4.6

Comfort

5.5

Overall

5.5

Crew

6.7

Boarding

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

DEL - YYZ

Ridiculous. Broken seat, wrong food, no snack options that were friendly for my diet (Jain), minimal effort to help passengers… how is this airline still operating besides on the mere helplessness of passengers. Terrible.
Air India
5.5
Fair
2,968 reviews
Air India
5.5
Fair
2,968 reviews
Check prices

Food

5.8

Entertainment

4.6

Comfort

5.5

Overall

5.5

Crew

6.7

Boarding

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

DEL - YYZ

Ridiculous. Broken seat, wrong food, no snack options that were friendly for my diet (Jain), minimal effort to help passengers… how is this airline still operating besides on the mere helplessness of passengers. Terrible.

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, Air India 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 ₹ 6,455, while return flights cost around ₹ 5,593.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ₹ 11,819, however they can be found for as little as ₹ 5,593.

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

    For those looking to save time traveling to Ko Samui, Kolkata Netaji S. Chandra offers the quickest one-way flight (6 hours 10 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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How does Cheapflights help users find flights to Ko Samui?

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, we can. To see specific flights to Ko Samui with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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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