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₹ 21,742+ 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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
15 Mar — 22 Mar1
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 13 February 2026.

Fri 16/1020:55
DEL
-
USM
2 stops12h 05m
Multiple Airlines
Mon 19/1006:55
USM
-
DEL
1 stop10h 45m
Multiple Airlines
Deal found 9/2₹ 41,763
Wed 18/208:25
DEL
-
USM
1 stop10h 30m
Multiple Airlines
Mon 23/207:55
USM
-
DEL
1 stop29h 40m
Multiple Airlines
Deal found 11/2₹ 41,945
Fri 19/613:25
DEL
-
USM
1 stop17h 30m
Multiple Airlines
Mon 29/619:00
USM
-
DEL
1 stop18h 20m
Multiple Airlines
Deal found 11/2₹ 44,391
Sat 28/216:10
DEL
-
USM
1 stop13h 30m
Multiple Airlines
Sat 7/311:00
USM
-
DEL
1 stop10h 20m
Multiple Airlines
Deal found 10/2₹ 44,934
Sat 28/216:10
DEL
-
USM
1 stop13h 30m
Multiple Airlines
Fri 6/306:45
USM
-
DEL
1 stop14h 35m
Multiple Airlines
Deal found 10/2₹ 45,115
Sat 28/216:10
DEL
-
USM
1 stop13h 30m
Multiple Airlines
Thu 5/307:15
USM
-
DEL
1 stop14h 05m
Multiple Airlines
Deal found 10/2₹ 45,478
Fri 27/214:30
DEL
-
USM
1 stop15h 45m
Multiple Airlines
Fri 6/319:00
USM
-
DEL
1 stop18h 55m
Multiple Airlines
Deal found 10/2₹ 45,659
Fri 6/313:20
DEL
-
USM
1 stop17h 35m
Multiple Airlines
Thu 12/307:55
USM
-
DEL
1 stop12h 05m
Multiple Airlines
Deal found 11/2₹ 45,840
Fri 27/214:30
DEL
-
USM
1 stop15h 45m
Multiple Airlines
Sat 7/308:45
USM
-
DEL
1 stop11h 15m
Multiple Airlines
Deal found 10/2₹ 46,474
Fri 13/314:30
DEL
-
USM
1 stop15h 45m
Multiple Airlines
Wed 18/315:50
USM
-
DEL
1 stop9h 35m
Multiple Airlines
Deal found 10/2₹ 46,746
Wed 27/513:25
DEL
-
USM
1 stop17h 30m
Multiple Airlines
Mon 1/615:25
USM
-
DEL
1 stop21h 55m
Multiple Airlines
Deal found 10/2₹ 47,018

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 13 February 2026.

Return from

₹ 44,391

One-way from

₹ 21,742

Popular in

March

Cheapest in

August

Average price

₹ 55,986
19/6-29/6
  • 19/6-29/6
  • 2 total stops
  • 35h 50m total
  • New Delhi to Ko Samui
Search Deals
31/3
  • 31/3
  • 2 total stops
  • 19h 35m total
  • New Delhi to Ko Samui
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (₹ 10,365 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 1,893 potential savings vs. average return price).
Search Deals
Average for return flights in February 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 13 February 2026.
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

Sat 28/2

16:10-07:10

1 stop13h 30m

Ko Samui

Sat 7/3

11:00-19:50

1 stop10h 20m

₹ 44,934

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 28/2

16:10-07:10

1 stop13h 30m

Ko Samui

Fri 6/3

06:45-19:50

1 stop14h 35m

₹ 45,115

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 28/2

16:10-07:10

1 stop13h 30m

Ko Samui

Thu 5/3

07:15-19:50

1 stop14h 05m

₹ 45,478

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 27/2

14:30-07:45

1 stop15h 45m

Ko Samui

Fri 6/3

19:00-12:25

1 stop18h 55m

₹ 45,659

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 6/3

13:20-08:25

1 stop17h 35m

Ko Samui

Thu 12/3

07:55-18:30

1 stop12h 05m

₹ 45,840

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 13/3

14:30-07:45

1 stop15h 45m

Ko Samui

Wed 18/3

15:50-23:55

1 stop9h 35m

₹ 46,746

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Sat 14/3

14:30-07:45

1 stop15h 45m

Ko Samui

Thu 19/3

14:05-21:15

1 stop8h 40m

₹ 47,652

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 23/2

14:30-09:20

1 stop17h 20m

Ko Samui

Sat 28/2

07:00-18:30

1 stop13h 00m

₹ 48,195

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 9/4

08:25-16:50

1 stop6h 55m

Ko Samui

Thu 9/4

21:00-18:15

1 stop22h 45m

₹ 48,648

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 17/4

11:00-20:50

1 stop8h 20m

Ko Samui

Mon 20/4

15:50-01:35

1 stop11h 15m

₹ 48,739

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 15 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

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 13 February 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
382 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

6.8

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
382 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

6.8

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
2,964 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

6.8

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 ₹ 8,932, while return flights cost around ₹ 13,014.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ₹ 13,138, however they can be found for as little as ₹ 13,014.

  • 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 (5 hours 40 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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Millions of users choose and trust Cheapflights to book the best flight deals to Ko Samui for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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.

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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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