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 £121.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £227, 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 30 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).

£328+ 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 September 2026.

Mon 5/1019:35 -

2 stops18h 50m

Mon 12/1008:00 -

2 stops30h 45m

Deal found 19/9£666

Tue 29/911:10 -

2 stops23h 20m

Thu 29/1012:25 -

3 stops29h 00m

Deal found 22/9£667

Mon 9/1120:25 -

2 stops31h 15m

Wed 18/1115:05 -

2 stops33h 45m

Deal found 19/9£667

Wed 23/911:35 -

3 stops26h 50m

Mon 19/1011:05 -

2 stops25h 30m

Deal found 21/9£667

Tue 22/909:45 -

2 stops28h 40m

Mon 28/914:30 -

2 stops34h 05m

Deal found 21/9£668

Tue 3/1117:45 -

2 stops33h 55m

Tue 10/1115:05 -

2 stops33h 45m

Deal found 18/9£668

Mon 19/1013:50 -

3 stops25h 45m

Sun 25/1008:55 -

2 stops28h 35m

Deal found 20/9£669

Thu 5/1117:45 -

2 stops33h 55m

Wed 18/1118:15 -

2 stops30h 35m

Deal found 19/9£669

Wed 4/1117:45 -

2 stops33h 55m

Wed 11/1118:15 -

2 stops30h 35m

Deal found 19/9£670

Mon 5/1013:50 -

3 stops24h 35m

Wed 4/1121:10 -

2 stops25h 25m

Deal found 22/9£670

Mon 2/1120:25 -

2 stops31h 15m

Wed 25/1111:10 -

2 stops39h 10m

Deal found 17/9£670

Tue 22/909:45 -

2 stops28h 40m

Sun 27/915:25 -

2 stops33h 10m

Deal found 21/9£671

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 September 2026.

Tue 3/1115:05 -

3 stops22h 20m

Tue 10/1117:05 -

3 stops25h 10m

Deal found 19/9£681

Mon 2/1113:35 -

2 stops20h 55m

Mon 9/1118:15 -

2 stops24h 25m

Deal found 18/9£837

Mon 22/221:00 -

1 stop17h 05m

Mon 1/313:25 -

1 stop23h 20m

Deal found 19/9£854

Sat 20/208:40 -

2 stops19h 00m

Sat 6/314:30 -

2 stops22h 25m

Deal found 22/9£972

Mon 16/1121:20 -

1 stop16h 05m

Wed 18/1108:30 -

1 stop17h 35m

Deal found 21/9£1,009

Mon 9/1109:15 -

2 stops23h 05m

Wed 18/1110:20 -

2 stops29h 20m

Deal found 19/9£1,018

Thu 18/213:05 -

1 stop21h 05m

Fri 5/316:25 -

1 stop21h 00m

Deal found 20/9£1,024

Mon 9/1110:00 -

2 stops20h 30m

Fri 13/1108:30 -

2 stops18h 05m

Deal found 21/9£1,061

Sat 21/1117:50 -

1 stop18h 45m

Thu 3/1208:30 -

2 stops27h 55m

Deal found 20/9£1,119

Mon 5/1013:35 -

3 stops24h 50m

Mon 12/1006:00 -

3 stops21h 40m

Deal found 19/9£717

Fri 2/1015:15 -

3 stops23h 10m

Fri 6/1117:40 -

3 stops25h 50m

Deal found 20/9£722

Wed 24/221:00 -

1 stop38h 15m

Fri 12/316:25 -

1 stop20h 20m

Deal found 20/9£855

Thu 5/1109:40 -

2 stops24h 50m

Thu 12/1118:15 -

2 stops24h 25m

Deal found 21/9£868

Mon 16/1109:40 -

2 stops21h 10m

Thu 19/1120:30 -

2 stops22h 10m

Deal found 18/9£886

Thu 7/114:40 -

3 stops23h 40m

Thu 28/118:05 -

3 stops27h 30m

Deal found 20/9£818

Sun 1/1113:20 -

2 stops18h 50m

Thu 12/1110:20 -

2 stops29h 20m

Deal found 17/9£1,023

Thu 18/213:05 -

1 stop22h 50m

Thu 4/316:25 -

1 stop23h 40m

Deal found 21/9£1,024

Sat 20/221:00 -

1 stop17h 05m

Sat 6/313:25 -

1 stop23h 20m

Deal found 17/9£957

Fri 23/1021:35 -

1 stop28h 10m

Sun 1/1120:30 -

1 stop29h 35m

Deal found 17/9£1,086

Sun 4/1006:45 -

3 stops21h 45m

Tue 3/1117:40 -

3 stops23h 55m

Deal found 22/9£822

Fri 19/310:00 -

2 stops20h 05m

Sun 28/307:50 -

2 stops18h 25m

Deal found 20/9£1,206

Fri 11/1206:50 -

3 stops28h 35m

Fri 18/1207:00 -

3 stops23h 55m

Deal found 18/9£827

Mon 4/118:45 -

1 stop16h 30m

Tue 19/113:25 -

2 stops22h 55m

Deal found 18/9£1,019

Fri 8/113:30 -

2 stops18h 40m

Tue 6/409:15 -

2 stops29h 25m

Deal found 19/9£1,136

Wed 30/1217:50 -

2 stops19h 35m

Sun 28/211:40 -

2 stops26h 35m

Deal found 20/9£1,220

Wed 30/1206:50 -

3 stops25h 50m

Thu 14/119:50 -

3 stops25h 45m

Deal found 21/9£842

Sun 3/118:45 -

1 stop19h 20m

Thu 21/113:25 -

1 stop23h 20m

Deal found 17/9£1,037

Sat 3/1012:10 -

2 stops19h 35m

Mon 2/1107:00 -

2 stops19h 35m

Deal found 22/9£1,234

Sat 17/1015:30 -

3 stops22h 55m

Sat 24/1006:00 -

3 stops24h 30m

Deal found 17/9£847

Fri 12/318:45 -

1 stop19h 20m

Fri 2/413:30 -

1 stop23h 05m

Deal found 22/9£1,037

Find flight deals to Ko Samui

Return from	£666
One-way from	£328
Popular in	December
Cheapest in	November
Average price	£823

5/10-12/10
4 total stops
49h 35m total
London to Ko Samui

Search Deals

5/12-31/12
3 total stops
29h 15m 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

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Tue 1/12

22:30-07:10

2 stops25h 40m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£340

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Fri 4/12

20:15-08:00

3 stops52h 45m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£352

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Wed 2/12

19:45-08:00

3 stops53h 15m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£354

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 29/9

06:35-20:25

3 stops31h 50m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£357

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Sat 31/10

21:10-07:10

2 stops27h 00m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£361

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Sun 15/11

19:05-20:25

3 stops42h 20m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£362

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Sun 15/11

08:45-20:25

3 stops52h 40m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£365

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Sun 15/11

21:10-07:45

2 stops27h 35m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£365

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Tue 20/10

07:45-15:10

3 stops25h 25m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£371

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 1/12

07:45-07:10

3 stops40h 25m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

Flights are sorted by cheapest return flights first.

Deals found on 22/9

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

LTN-USM

LGW-USM

LHR-USM

LCY-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

LTN-USM

LGW-USM

LHR-USM

LCY-USM

How long is the flight to Ko Samui?

On average, a flight from London to Ko Samui takes 18 hours 33 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

1,530 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

1,530 reviews

EVA Air

8.5

Very Good

1,530 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

1,606 reviews

EVA Air

8.5

Very Good

1,530 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

420 reviews

EVA Air

8.5

Very Good

1,530 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

7.3

Good

3,731 reviews

EVA Air

8.5

Very Good

1,530 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

8,228 reviews

EVA Air

8.5

Very Good

1,530 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 £121.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £227, 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 30 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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£328+ Cheap flights to Ko Samui

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. 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 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 22 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 22 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 22 September 2026.

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

Discover last-minute flight deals to Ko Samui. Data last updated 22 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 22 September 2026.

Search for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 22 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 33 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 22 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 22 September 2026.

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 22 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 22 September 2026.