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₹ 16,734+ 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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
10 Jul — 17 Jul1
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 5 July 2025.

Return from

₹ 37,737

One-way from

₹ 16,734

Popular in

December

Cheapest in

October

Average price

₹ 47,726
22/8-29/8
  • 22/8-29/8
  • 2 total stops
  • 24h 10m total
  • New Delhi to Ko Samui
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21/7
  • 21/7
  • 2 total stops
  • 35h 20m total
  • New Delhi to Ko Samui
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Highest demand for flights based on searches. 14% potential increase in price (₹ 733,730 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 215,663 potential savings vs. average return price).
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Average for return flights in July 2025
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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 5 July 2025.

Fri 22/801:55DEL - USM
1 stop13h 30mMultiple Airlines
Fri 29/814:30USM - DEL
1 stop10h 40mMultiple Airlines
Deal found 3/7₹ 37,737
Fri 12/1211:00DEL - USM
1 stop7h 55mThai Airways
Tue 16/1220:20USM - DEL
1 stop7h 30mThai Airways
Deal found 3/7₹ 56,349

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 5 July 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

Fri 22/8

01:55-16:55

1 stop13h 30m

Ko Samui

Fri 29/8

14:30-23:40

1 stop10h 40m

₹ 37,737

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Fri 12/12

11:00-20:25

1 stop7h 55m

Ko Samui

Tue 16/12

20:20-02:20

1 stop7h 30m

₹ 56,349

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Mon 21/7

05:40-18:30

2 stops35h 20m

₹ 16,734

New DelhiKo Samui

DEL - USM

DELUSM

New Delhi Indira Gandhi Intl

Thu 7/8

23:35-13:10

2 stops36h 05m

₹ 53,873

Flights are sorted by cheapest return flights first.

Deals found on 4/7

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 9 hours 30 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, Singapore Airlines and Air India.

Singapore Airlines
Singapore Airlines
From ₹ 288
Thai Airways
Thai Airways
From ₹ 427
Air India
Air India
From ₹ 452

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 5 July 2025.
Read reviews from past customers who have flown Vietnam Airlines to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Overall

7.5

Entertainment

6.2

Crew

8.1

Food

6.7

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.
Vietnam Airlines
7.5
Good
195 reviews
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Overall

7.5

Entertainment

6.2

Crew

8.1

Food

6.7

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.

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 ₹ 8,226, while return flights cost around ₹ 11,808.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ₹ 288, however they can be found for as little as ₹ 138.

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

    For those looking to save time traveling to Ko Samui, Mumbai Chhatrapati Shivaji Intl offers the quickest one-way flight (7 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 Tao
Ko Pha Ngan

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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.

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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