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฿2,449+ 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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
5 Sep — 12 Sep1
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 17,341 searches and data was last updated on 31 August 2025.

Return from

฿4,576

One-way from

฿2,449

Popular in

August

Cheapest in

May

Average price

฿9,054
Bangkok Airways
  • Bangkok Airways
  • 16/10-20/10
  • Nonstop
  • 2h 20m total
  • Bangkok to Ko Samui
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Bangkok Airways
  • Bangkok Airways
  • 14/10
  • Nonstop
  • 1h 05m total
  • Bangkok to Ko Samui
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿10,607 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (฿3,861 potential savings vs. average return price).
Search Deals
Average for return flights in August 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 31 August 2025.

Thu 16/1006:15BKK - USM
Nonstop1h 05mBangkok Airways
Mon 20/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 29/8฿4,576
Sat 8/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Wed 12/1121:10USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 30/8฿4,801
Mon 27/1007:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 30/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 29/8฿4,833
Sun 16/1118:55DMK - USM
Nonstop1h 35mBangkok Airways
Thu 27/1116:35USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 29/8฿4,833
Sun 19/1006:15BKK - USM
Nonstop1h 05mBangkok Airways
Wed 22/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 30/8฿4,994
Thu 23/1006:15BKK - USM
Nonstop1h 05mBangkok Airways
Sun 26/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 29/8฿5,027
Sun 26/1008:50DMK - USM
Nonstop1h 35mBangkok Airways
Thu 30/1006:45USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 29/8฿5,059
Tue 14/1020:05BKK - USM
Nonstop1h 30mBangkok Airways
Tue 21/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 30/8฿5,091
Wed 12/1118:55DMK - USM
Nonstop1h 35mBangkok Airways
Thu 20/1106:45USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 30/8฿5,091
Tue 21/1019:25BKK - USM
Nonstop1h 05mBangkok Airways
Fri 31/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 30/8฿5,156
Fri 21/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Sun 30/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 30/8฿5,188
Sun 16/1118:55DMK - USM
Nonstop1h 35mBangkok Airways
Thu 20/1106:45USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 30/8฿5,220

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 17,341 searches and data was last updated on 31 August 2025.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 13/10

06:15-07:20

Nonstop1h 05m

Ko Samui

Thu 23/10

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 12/1

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 8/3

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Wed 25/2

06:00-07:10

Nonstop1h 10m

Ko Samui

Tue 3/3

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 23/2

06:00-07:10

Nonstop1h 10m

Ko Samui

Mon 23/3

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 16/10

06:15-07:20

Nonstop1h 05m

Ko Samui

Mon 20/10

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 12/1

06:00-07:10

Nonstop1h 10m

Ko Samui

Tue 10/3

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 20/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 23/11

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 18/10

06:15-07:20

Nonstop1h 05m

Ko Samui

Wed 22/10

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 24/10

06:15-07:20

Nonstop1h 05m

Ko Samui

Wed 29/10

07:00-08:15

Nonstop1h 15m

฿4,576

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Wed 12/11

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 19/11

06:45-08:20

Nonstop1h 35m

฿5,059

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 42 results
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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

When is the best time to book a flight to Ko Samui?

Use this chart to determine the optimal time to book a return flight from Bangkok to Ko Samui. Price data was last updated on 29 August 2025.

The best time to book flights to Ko Samui is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to Ko Samui?

On average, a flight from Bangkok to Ko Samui takes 1 hour 17 minutes. Flights to Ko Samui from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Ko Samui?

Use this chart to determine the cheapest time to fly return from Bangkok to Ko Samui. Price data was last updated on 24 August 2025.

Users looking for the lowest fares to Ko Samui should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday evenings, when prices are usually at their highest.

Weekly flight availability to Ko Samui

The most flights from Bangkok to Ko Samui are scheduled on a Sunday (286 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (236 on average).

What are the most popular airlines that fly to Ko Samui?

The most popular airline flying from Bangkok to Ko Samui is Bangkok Airways.

Bangkok Airways
Bangkok Airways
From ฿121

What are the cheapest airlines that fly to Ko Samui?

The cheapest airline flying from Bangkok to Ko Samui is Bangkok 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 31 August 2025.
Read reviews from past customers who have flown Bangkok Airways to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
112 reviews
Check prices

Overall

8.0

Boarding

7.9

Food

7.2

Comfort

7.8

Crew

8.5

Entertainment

6.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very Good
112 reviews
Bangkok Airways
8.0
Very Good
112 reviews
Check prices

Overall

8.0

Boarding

7.9

Food

7.2

Comfort

7.8

Crew

8.5

Entertainment

6.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

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. Ko Samui is the only Ko Samui airport and it handles 261 daily flights from Bangkok. 1 airline has flights from Bangkok to Ko Samui on a regular basis.

  • 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, Bangkok Airways 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 ฿2,441, while return flights cost around ฿4,661.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ฿275, however they can be found for as little as ฿145.

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

    For those looking to save time traveling to Ko Samui, Krabi offers the quickest one-way flight (0 hours 45 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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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui.

Can Cheapflights find flights to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Ko Samui flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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