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฿3,110+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
16 Apr — 23 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 17 March 2026.

Thu 5/1118:55
DMK
-
USM
Nonstop1h 35m
Bangkok Airways
Thu 19/1106:45
USM
-
DMK
Nonstop1h 35m
Bangkok Airways
Deal found 16/3฿5,701
Tue 5/506:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Fri 29/519:45
USM
-
BKK
Nonstop1h 30m
Bangkok Airways
Deal found 17/3฿5,734
Wed 18/305:45
BKK
-
USM
Nonstop1h 35m
Bangkok Airways
Sun 29/307:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Deal found 15/3฿5,766
Thu 4/618:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Mon 8/606:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Deal found 16/3฿5,766
Mon 4/506:05
BKK
-
USM
Nonstop1h 05m
Multiple Airlines
Fri 8/517:00
USM
-
BKK
1 stop5h 05m
Multiple Airlines
Deal found 15/3฿5,798
Thu 14/518:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Thu 21/506:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Deal found 15/3฿5,798
Mon 20/406:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Mon 27/406:00
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Deal found 16/3฿5,831
Tue 5/518:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Thu 14/506:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Deal found 14/3฿5,831
Tue 28/406:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Wed 29/406:00
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Deal found 13/3฿5,863
Tue 5/518:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Sun 10/506:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Deal found 15/3฿5,863
Fri 17/417:55
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Wed 29/406:00
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Deal found 14/3฿5,896
Sat 13/618:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Sun 28/606:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Deal found 16/3฿5,896

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 17,341 searches and data was last updated on 17 March 2026.

Return from

฿5,766

One-way from

฿3,110

Popular in

August

Cheapest in

November

Average price

฿9,135
Bangkok Airways
  • Bangkok Airways
  • 23/5-23/5
  • Nonstop
  • 2h 20m total
  • Bangkok to Ko Samui
Search Deals
5/5
  • 5/5
  • 1 total stop
  • 4h 45m total
  • Bangkok to Ko Samui
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿199 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿113 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 17,341 searches and data was last updated on 17 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

Cheapest return flight

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 21/5

07:00-14:50

1 stop7h 50m

Ko Samui

Sun 31/5

17:00-22:05

1 stop5h 05m

฿5,993

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 12/6

14:30-19:15

1 stop4h 45m

Ko Samui

Sun 14/6

17:00-22:05

1 stop5h 05m

฿6,025

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 5/5

18:15-19:45

Nonstop1h 30m

Ko Samui

Tue 12/5

06:55-08:25

Nonstop1h 30m

฿6,284

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 5/5

18:15-19:45

Nonstop1h 30m

Ko Samui

Mon 11/5

06:55-08:25

Nonstop1h 30m

฿6,284

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 11/5

15:25-20:25

1 stop5h 00m

Ko Samui

Fri 15/5

19:00-23:15

1 stop4h 15m

฿6,284

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Sun 24/5

18:15-19:45

Nonstop1h 30m

Ko Samui

Mon 8/6

11:15-12:45

Nonstop1h 30m

฿6,284

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Sat 9/5

18:15-19:45

Nonstop1h 30m

Ko Samui

Thu 14/5

06:55-08:25

Nonstop1h 30m

฿6,284

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Thu 4/6

18:15-19:45

Nonstop1h 30m

Ko Samui

Tue 9/6

06:55-08:25

Nonstop1h 30m

฿6,284

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 5/5

18:15-19:45

Nonstop1h 30m

Ko Samui

Mon 25/5

06:55-08:25

Nonstop1h 30m

฿6,284

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Wed 6/5

15:25-19:10

1 stop3h 45m

Ko Samui

Thu 7/5

17:00-22:05

1 stop5h 05m

฿6,511

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 41 resultsSorted by cheapest first
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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 13 March 2026.

The best time to book flights to Ko Samui is 88 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 14 March 2026.

Users looking for the lowest fares to Ko Samui should consider flying on Friday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday at midday, 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 Tuesday (366 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (333 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 ฿3,559

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 17 March 2026.
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
8.1
Very Good
128 reviews
Check prices

Comfort

8.0

Food

7.3

Crew

8.6

Overall

8.1

Boarding

8.1

Entertainment

6.3

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Comfort

8.0

Food

7.3

Crew

8.6

Overall

8.1

Boarding

8.1

Entertainment

6.3

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

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 345 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 ฿3,839, while return flights cost around ฿3,980.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around ฿7,548, however they can be found for as little as ฿3,980.

  • 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 Tao
Ko Pha Ngan

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How does Cheapflights help users find flights to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets to Ko Samui?

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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