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 2.1 mi journey from Ko Samui to Ko Samui’s city center.

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 £56, while return flights cost around £121.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £219, however they can be found for as little as £121.

Where does the fastest flight to Ko Samui depart from?

For those looking to save time traveling to Ko Samui, London offers the quickest one-way flight (16 hours 20 minutes).

Does Ko Samui have car hire?

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 mi away from Ko Samui).

£271+ Cheap Flights to Ko Samui, Thailand

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 22 August 2026.

Sun 30/811:35 -

2 stops25h 25m

Fri 4/1219:00 -

1 stop25h 05m

Deal found 17/8£675

Mon 24/811:35 -

2 stops27h 10m

Thu 3/1207:00 -

1 stop21h 05m

Deal found 17/8£679

Mon 7/913:50 -

3 stops24h 35m

Sat 19/915:25 -

3 stops25h 30m

Deal found 21/8£688

Sat 29/811:35 -

2 stops24h 55m

Tue 1/1221:30 -

1 stop25h 05m

Deal found 18/8£689

Fri 2/1012:35 -

2 stops22h 00m

Fri 9/1021:00 -

2 stops39h 35m

Deal found 18/8£690

Thu 27/811:35 -

2 stops24h 55m

Thu 3/1207:00 -

1 stop21h 05m

Deal found 17/8£692

Sun 8/1112:05 -

2 stops18h 45m

Sun 22/1116:25 -

2 stops22h 40m

Deal found 18/8£692

Wed 26/811:35 -

2 stops24h 55m

Thu 3/1207:00 -

1 stop21h 05m

Deal found 17/8£692

Mon 21/906:00 -

2 stops25h 10m

Mon 12/1008:45 -

2 stops34h 15m

Deal found 21/8£694

Sat 29/811:35 -

2 stops21h 45m

Fri 4/1219:00 -

1 stop25h 05m

Deal found 18/8£695

Sun 8/1106:50 -

3 stops45h 10m

Sun 22/1108:55 -

3 stops45h 50m

Deal found 18/8£695

Mon 2/1106:10 -

3 stops29h 40m

Thu 12/1108:55 -

3 stops43h 30m

Deal found 18/8£695

Best flights to Ko Samui
Discover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Mon 2/1106:10 -

3 stops29h 40m

Thu 12/1108:55 -

3 stops43h 30m

Deal found 18/8£695

Sun 20/920:50 -

2 stops36h 35m

Fri 25/908:00 -

2 stops41h 10m

Deal found 19/8£762

Thu 24/922:15 -

1 stop16h 15m

Wed 7/1018:25 -

1 stop17h 30m

Deal found 17/8£802

Thu 24/909:00 -

2 stops19h 30m

Thu 8/1019:00 -

2 stops17h 40m

Deal found 17/8£864

Thu 10/914:35 -

2 stops21h 25m

Tue 29/919:00 -

2 stops23h 35m

Deal found 20/8£879

Mon 16/1113:55 -

2 stops18h 45m

Wed 18/1121:10 -

2 stops28h 00m

Deal found 18/8£958

Wed 14/1013:10 -

2 stops18h 00m

Tue 27/1010:00 -

2 stops29h 40m

Deal found 21/8£964

Mon 23/1113:05 -

1 stop22h 10m

Sun 29/1116:25 -

1 stop21h 00m

Deal found 22/8£973

Sun 3/113:45 -

2 stops18h 10m

Thu 21/107:55 -

2 stops18h 40m

Deal found 17/8£1,082

Tue 15/915:15 -

3 stops24h 20m

Sun 27/917:55 -

3 stops23h 30m

Deal found 21/8£712

Tue 8/920:50 -

2 stops32h 50m

Tue 6/1014:35 -

2 stops34h 35m

Deal found 18/8£766

Tue 8/914:05 -

3 stops35h 40m

Thu 24/919:45 -

3 stops24h 50m

Deal found 20/8£731

Thu 10/920:50 -

2 stops18h 00m

Sun 27/915:25 -

2 stops21h 05m

Deal found 20/8£767

Mon 21/919:25 -

1 stop19h 45m

Mon 5/1013:30 -

1 stop23h 05m

Deal found 17/8£847

Sat 12/909:00 -

2 stops19h 30m

Thu 24/919:00 -

2 stops17h 40m

Deal found 21/8£880

Sun 27/914:55 -

2 stops21h 05m

Wed 7/1019:00 -

2 stops23h 55m

Deal found 17/8£892

Mon 16/1106:10 -

3 stops29h 40m

Thu 26/1108:55 -

3 stops43h 30m

Deal found 18/8£742

Fri 11/920:50 -

2 stops18h 45m

Mon 28/906:00 -

2 stops19h 10m

Deal found 21/8£770

Sun 13/919:25 -

1 stop19h 45m

Thu 24/913:30 -

1 stop23h 05m

Deal found 20/8£849

Thu 14/109:15 -

2 stops22h 40m

Thu 11/310:00 -

2 stops29h 40m

Deal found 22/8£965

Sat 23/119:20 -

2 stops37h 40m

Sat 13/213:25 -

2 stops24h 15m

Deal found 17/8£981

Tue 1/1215:05 -

3 stops23h 15m

Sun 13/1218:05 -

3 stops27h 50m

Deal found 22/8£742

Wed 9/914:55 -

2 stops21h 05m

Fri 25/917:55 -

2 stops25h 10m

Deal found 20/8£903

Thu 24/909:00 -

2 stops19h 30m

Wed 7/1019:00 -

2 stops17h 40m

Deal found 17/8£914

Wed 9/919:25 -

1 stop19h 45m

Mon 28/913:30 -

1 stop23h 05m

Deal found 20/8£849

Thu 14/113:05 -

1 stop22h 10m

Thu 11/316:25 -

1 stop21h 00m

Deal found 22/8£1,038

Mon 18/120:55 -

2 stops27h 15m

Thu 11/213:25 -

2 stops24h 15m

Deal found 17/8£984

Thu 10/914:55 -

2 stops21h 05m

Sat 26/917:55 -

2 stops25h 10m

Deal found 20/8£903

Fri 2/1006:20 -

3 stops30h 30m

Fri 9/1018:15 -

3 stops32h 00m

Deal found 17/8£753

Mon 28/909:00 -

2 stops19h 30m

Fri 9/1019:00 -

2 stops17h 40m

Deal found 17/8£926

Find flight deals to Ko Samui

Return from	£676
One-way from	£271
Popular in	December
Cheapest in	November
Average price	£972

1/10-8/10
6 total stops
63h 30m total
London to Ko Samui

Search Deals

21/9
3 total stops
43h 15m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£45 potential savings vs. average return price).

Search Deals

Average for return flights in August 2026

Search Deals

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Mon 2/11

06:10-18:50

3 stops29h 40m

Ko Samui

Thu 12/11

08:55-21:25

3 stops43h 30m

£695

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 15/9

15:15-21:35

3 stops24h 20m

Ko Samui

Sun 27/9

17:55-11:25

3 stops23h 30m

£712

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 8/9

14:05-07:45

3 stops35h 40m

Ko Samui

Thu 24/9

19:45-14:35

3 stops24h 50m

£731

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Mon 16/11

06:10-18:50

3 stops29h 40m

Ko Samui

Thu 26/11

08:55-21:25

3 stops43h 30m

£742

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 1/12

15:05-21:20

3 stops23h 15m

Ko Samui

Sun 13/12

18:05-14:55

3 stops27h 50m

£742

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Fri 2/10

06:20-18:50

3 stops30h 30m

Ko Samui

Fri 9/10

18:15-20:15

3 stops32h 00m

£753

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Sun 20/9

20:50-15:25

2 stops36h 35m

Ko Samui

Fri 25/9

08:00-19:10

2 stops41h 10m

£762

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Tue 8/9

20:50-11:40

2 stops32h 50m

Ko Samui

Tue 6/10

14:35-19:10

2 stops34h 35m

£766

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Thu 10/9

20:50-20:50

2 stops18h 00m

Ko Samui

Sun 27/9

15:25-06:30

2 stops21h 05m

£767

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Fri 11/9

20:50-21:35

2 stops18h 45m

Ko Samui

Mon 28/9

06:00-19:10

2 stops19h 10m

£770

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LON-USM

LGW-USM

LHR-USM

STN-USM

LTN-USM

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

LON-USM

LGW-USM

LHR-USM

STN-USM

LTN-USM

How long is the flight to Ko Samui?

On average, a flight from London to Ko Samui takes 18 hours 40 minutes. Flights to Ko Samui from other popular cities in United Kingdom 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 London to Ko Samui are Thai Airways, EVA Air and Singapore Airlines.

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from London to Ko Samui are Bangkok Airways, Oman Air and Austrian Airlines.

Rainfall in Ko Samui by month

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches 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

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).

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

To ensure you get the cheapest price possible for a flight to Ko Samui, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Ko Samui

See what other customers who have flown with EVA Air,Singapore Airlines, andThai Airways to Thailand have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

EVA Air

8.5

Very Good

1,518 reviews

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Singapore Airlines

8.2

Very Good

1,585 reviews

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Thai Airways

7.9

Good

417 reviews

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Qatar Airways

7.4

Good

3,737 reviews

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

British Airways

6.7

Okay

8,183 reviews

EVA Air

8.5

Very Good

1,518 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

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 2.1 mi journey from Ko Samui to Ko Samui’s city center.
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 £56, while return flights cost around £121.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £219, however they can be found for as little as £121.
Where does the fastest flight to Ko Samui depart from?
For those looking to save time traveling to Ko Samui, London offers the quickest one-way flight (16 hours 20 minutes).
Does Ko Samui have car hire?
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 mi away from Ko Samui).

See more FAQs

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How does Cheapflights help users find flights to Ko Samui?

Deals for Ko Samui flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Ko Samui for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights to Ko Samui, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

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£271+ 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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Ko Samui in 2026

Cheapest flights to Ko SamuiExplore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 22 August 2026.

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 22 August 2026.

Best flights to Ko SamuiDiscover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Discover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Last-minute flights to Ko SamuiDiscover last-minute flight deals to Ko Samui. Data last updated 22 August 2026 and is based on user searches.

Discover last-minute flight deals to Ko Samui. Data last updated 22 August 2026 and is based on user searches.

One-way flights to Ko SamuiSearch for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Search for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Find flight deals to Ko Samui

Return from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights to Ko Samui that are best for you.

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.

Cheapflights Insights

How long is the flight to Ko Samui?

On average, a flight from London to Ko Samui takes 18 hours 40 minutes. Flights to Ko Samui from other popular cities in United Kingdom 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 London to Ko Samui are Thai Airways, EVA Air and Singapore Airlines.

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from London to Ko Samui are Bangkok Airways, Oman Air and Austrian Airlines.

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 inches 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.

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

To ensure you get the cheapest price possible for a flight to Ko Samui, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Ko Samui

See what other customers who have flown with EVA Air,Singapore Airlines, andThai Airways to Thailand have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to Ko Samui

What airport do you fly into for flights to Ko Samui?

Can I find cheaper flights to Ko Samui if I am willing to have stopovers?

What is the best airline to fly to Ko Samui?

What is the cheapest airport to fly to in Ko Samui?

How much is a return flight to Ko Samui?

Where does the fastest flight to Ko Samui depart from?

Does Ko Samui have car hire?

Are there hotels close to Ko Samui?

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find the best flight deals to Ko Samui

Some of the lowest fares we’ve come across for flights to Ko Samui.

Search flights to Ko Samui by cabin class

Find flights to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Find the best flight deals from Ko Samui

Some of the lowest fares we’ve come across for flights from Ko Samui.

Other flight destinations closest to Ko Samui

Book a flight to other destinations in Thailand.

Complete your trip

Reserve a car hire and hotel room to complete your trip to Ko Samui.

Most traveled routes by our users

Browse our most popular destinations

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

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Browse through the most popular flight routes to Thailand at this time.

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Fly with Cheapflights

How does Cheapflights help users find flights to Ko Samui?

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

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

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

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Travel Smart

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 22 August 2026.

Best flights to Ko Samui
Discover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 22 August 2026 and is based on user searches.

One-way flights to Ko Samui
Search for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.