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 £55, while return flights cost around £119.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £192, however they can be found for as little as £119.

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).

£324+ 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 1 September 2026.

Sun 11/1005:40 -

3 stops27h 00m

Tue 20/1013:50 -

2 stops23h 05m

Deal found 29/8£692

Sun 6/906:00 -

3 stops26h 40m

Sun 20/915:25 -

3 stops24h 25m

Deal found 31/8£692

Mon 2/1113:45 -

3 stops23h 05m

Fri 4/1218:05 -

2 stops27h 30m

Deal found 30/8£693

Tue 8/1220:05 -

2 stops42h 00m

Tue 15/1210:00 -

2 stops38h 50m

Deal found 26/8£693

Fri 9/1013:35 -

3 stops24h 50m

Sun 18/1014:00 -

2 stops22h 30m

Deal found 29/8£695

Mon 12/1017:40 -

3 stops20h 45m

Mon 19/1006:00 -

3 stops23h 25m

Deal found 28/8£695

Sat 28/1118:40 -

2 stops19h 25m

Tue 18/509:15 -

2 stops18h 30m

Deal found 31/8£696

Thu 1/1007:20 -

3 stops24h 35m

Thu 29/1020:20 -

2 stops27h 55m

Deal found 27/8£697

Mon 12/1013:35 -

3 stops24h 50m

Mon 19/1017:55 -

3 stops24h 50m

Deal found 28/8£697

Mon 7/912:30 -

2 stops22h 05m

Fri 18/914:00 -

2 stops26h 15m

Deal found 30/8£698

Tue 1/1210:30 -

2 stops22h 30m

Tue 22/1215:35 -

2 stops29h 25m

Deal found 28/8£698

Sun 11/1005:40 -

3 stops27h 00m

Sun 18/1014:00 -

2 stops22h 30m

Deal found 27/8£699

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 1 September 2026.

Mon 12/1013:35 -

3 stops24h 50m

Mon 19/1017:55 -

3 stops24h 50m

Deal found 28/8£697

Sat 21/1116:25 -

2 stops21h 40m

Thu 3/1208:30 -

2 stops19h 20m

Deal found 28/8£780

Sat 27/221:20 -

1 stop15h 25m

Sat 20/319:40 -

1 stop16h 45m

Deal found 30/8£804

Tue 22/909:00 -

2 stops19h 30m

Tue 20/1019:00 -

2 stops17h 40m

Deal found 31/8£827

Sat 21/1113:05 -

1 stop35h 55m

Thu 3/1218:05 -

1 stop22h 00m

Deal found 28/8£869

Mon 21/910:50 -

2 stops19h 55m

Mon 19/1019:45 -

2 stops26h 55m

Deal found 31/8£890

Sun 29/1118:40 -

2 stops19h 25m

Sun 2/509:15 -

2 stops29h 10m

Deal found 29/8£898

Sun 29/1120:15 -

2 stops31h 20m

Mon 3/507:50 -

2 stops40h 55m

Deal found 29/8£917

Mon 16/1121:20 -

1 stop16h 05m

Wed 18/1108:30 -

1 stop17h 35m

Deal found 29/8£994

Thu 15/1006:20 -

3 stops23h 35m

Thu 22/1006:00 -

3 stops24h 30m

Deal found 30/8£701

Thu 10/907:20 -

3 stops25h 20m

Wed 23/906:00 -

3 stops23h 20m

Deal found 26/8£701

Thu 3/1221:20 -

1 stop15h 25m

Mon 14/1219:40 -

1 stop16h 45m

Deal found 30/8£807

Tue 22/917:50 -

2 stops19h 50m

Tue 20/1016:25 -

2 stops23h 05m

Deal found 31/8£833

Mon 21/909:00 -

2 stops20h 55m

Sun 18/1015:25 -

2 stops21h 15m

Deal found 31/8£838

Thu 1/1006:20 -

3 stops23h 35m

Mon 12/1017:55 -

3 stops24h 50m

Deal found 30/8£720

Thu 18/221:20 -

1 stop17h 00m

Fri 5/318:30 -

1 stop17h 55m

Deal found 27/8£810

Sat 21/1121:45 -

1 stop27h 15m

Thu 3/1219:45 -

1 stop26h 35m

Deal found 30/8£895

Tue 22/913:10 -

2 stops18h 35m

Mon 19/1009:15 -

2 stops29h 25m

Deal found 31/8£918

Mon 16/1114:05 -

2 stops39h 30m

Thu 19/1114:05 -

2 stops34h 50m

Deal found 30/8£929

Wed 30/905:40 -

3 stops22h 50m

Wed 7/1017:55 -

3 stops24h 40m

Deal found 31/8£723

Sun 15/1121:20 -

1 stop31h 30m

Tue 24/1119:10 -

1 stop17h 15m

Deal found 28/8£813

Mon 12/1021:05 -

2 stops18h 30m

Mon 19/1021:00 -

2 stops21h 55m

Deal found 28/8£933

Tue 22/919:30 -

2 stops16h 15m

Mon 19/1009:15 -

2 stops18h 30m

Deal found 31/8£726

Tue 1/1209:15 -

2 stops19h 40m

Mon 3/510:05 -

2 stops28h 35m

Deal found 29/8£986

Tue 13/1010:00 -

2 stops20h 45m

Wed 11/1107:00 -

2 stops19h 35m

Deal found 29/8£990

Fri 27/1121:00 -

1 stop17h 05m

Mon 3/513:30 -

1 stop23h 05m

Deal found 29/8£851

Mon 22/220:15 -

2 stops28h 55m

Mon 8/308:30 -

2 stops34h 35m

Deal found 26/8£940

Sun 13/906:45 -

3 stops23h 10m

Sun 20/917:55 -

3 stops23h 30m

Deal found 27/8£740

Thu 3/1213:30 -

2 stops18h 25m

Mon 14/1210:00 -

2 stops29h 40m

Deal found 30/8£1,016

Mon 4/110:00 -

2 stops20h 05m

Tue 19/107:00 -

2 stops19h 35m

Deal found 27/8£1,020

Find flight deals to Ko Samui

Return from	£692
One-way from	£324
Popular in	December
Cheapest in	November
Average price	£818

11/10-20/10
5 total stops
50h 05m total
London to Ko Samui

Search Deals

27/11
3 total stops
24h 55m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£124 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£49 potential savings vs. average return price).

Search Deals

Average for return flights in September 2026

Search Deals

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Mon 12/10

13:35-20:25

3 stops24h 50m

Ko Samui

Mon 19/10

17:55-12:45

3 stops24h 50m

£697

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Thu 15/10

06:20-11:55

3 stops23h 35m

Ko Samui

Thu 22/10

06:00-00:30

3 stops24h 30m

£701

LondonKo Samui

STN London Stansted - USM Ko Samui

STNUSM

London Stansted

Thu 10/9

07:20-14:40

3 stops25h 20m

Ko Samui

Wed 23/9

06:00-23:20

3 stops23h 20m

£701

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Thu 1/10

06:20-11:55

3 stops23h 35m

Ko Samui

Mon 12/10

17:55-12:45

3 stops24h 50m

£720

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Wed 30/9

05:40-10:30

3 stops22h 50m

Ko Samui

Wed 7/10

17:55-12:35

3 stops24h 40m

£723

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Tue 22/9

19:30-17:45

2 stops16h 15m

Ko Samui

Mon 19/10

09:15-21:45

2 stops18h 30m

£726

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Sun 13/9

06:45-11:55

3 stops23h 10m

Ko Samui

Sun 20/9

17:55-11:25

3 stops23h 30m

£740

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Sat 21/11

16:25-21:05

2 stops21h 40m

Ko Samui

Thu 3/12

08:30-20:50

2 stops19h 20m

£780

Fastest return journey

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Sat 27/2

21:20-19:45

1 stop15h 25m

Ko Samui

Sat 20/3

19:40-05:25

1 stop16h 45m

£804

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Thu 3/12

21:20-19:45

1 stop15h 25m

Ko Samui

Mon 14/12

19:40-05:25

1 stop16h 45m

£807

Flights are sorted by cheapest return flights first.

Deals found on 29/8

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

STN-USM

LHR-USM

LGW-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

STN-USM

LHR-USM

LGW-USM

LTN-USM

How long is the flight to Ko Samui?

On average, a flight from London to Ko Samui takes 18 hours 21 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

1,522 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

1,522 reviews

EVA Air

8.5

Very Good

1,522 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

1,591 reviews

EVA Air

8.5

Very Good

1,522 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

418 reviews

EVA Air

8.5

Very Good

1,522 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

3,722 reviews

EVA Air

8.5

Very Good

1,522 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

8,198 reviews

EVA Air

8.5

Very Good

1,522 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 £55, while return flights cost around £119.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £192, however they can be found for as little as £119.
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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£324+ 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 27/11. 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 1 September 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 1 September 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 1 September 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 1 September 2026.

Last-minute flights to Ko SamuiDiscover last-minute flight deals to Ko Samui. Data last updated 1 September 2026 and is based on user searches.

Discover last-minute flight deals to Ko Samui. Data last updated 1 September 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 1 September 2026.

Search for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 1 September 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 21 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

Popular Thailand flight routes

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

Fly your favourite airline to Ko Samui

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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 1 September 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 1 September 2026.

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 1 September 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 1 September 2026.