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.

What is the cheapest month to fly to Ko Samui?

Currently, the cheapest month for flights to Ko Samui is August . The most expensive month for flights is December . The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

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 £45, while return flights cost around £36.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £390, however they can be found for as little as £48.

Where does the fastest flight to Ko Samui depart from?

For those looking to save time traveling to Ko Samui, Birmingham offers the quickest one-way flight (16 hours 55 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).

£312+ Flights to Ko Samui, Thailand

Flights to Ko Samui in 2025

Return from	£705
One-way from	£334
Popular in	December
Cheapest in	September
Average price	£1,066

10/11-30/11
4 total stops
47h 55m total
London to Ko Samui

Search Deals

6/10
3 total stops
40h 20m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£29 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).

Search Deals

Average for return flights in August 2025

Search Deals

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 22 August 2025.

Mon 10/1110:30LGW - USM

2 stops22h 05mMultiple Airlines

Sun 30/1119:10USM - LGW

2 stops25h 50mMultiple Airlines

Deal found 21/8£705

Sat 8/1120:05LHR - USM

2 stops42h 00mMultiple Airlines

Sat 22/1110:00USM - LHR

2 stops18h 40mMultiple Airlines

Deal found 21/8£705

Mon 10/1118:40LHR - USM

2 stops19h 25mMultiple Airlines

Sat 22/1109:20USM - LHR

2 stops19h 20mMultiple Airlines

Deal found 21/8£707

Sun 28/922:05LHR - USM

2 stops32h 40mMultiple Airlines

Fri 17/1013:30USM - LHR

2 stops23h 25mMultiple Airlines

Deal found 21/8£709

Mon 27/1020:05LHR - USM

2 stops42h 00mSWISS

Fri 28/1116:25USM - LHR

2 stops22h 40mSWISS

Deal found 21/8£710

Wed 12/1116:00LGW - USM

1 stop17h 25mMultiple Airlines

Wed 26/1108:50USM - LGW

2 stops40h 30mMultiple Airlines

Deal found 21/8£710

Tue 2/922:05LHR - USM

2 stops33h 40mMultiple Airlines

Thu 2/1008:10USM - LHR

2 stops28h 45mMultiple Airlines

Deal found 21/8£710

Thu 27/1112:05LHR - USM

2 stops26h 00mSWISS

Fri 12/1216:25USM - LHR

2 stops22h 40mSWISS

Deal found 20/8£711

Tue 11/1116:00LGW - USM

1 stop19h 55mMultiple Airlines

Tue 25/1118:15USM - LGW

2 stops31h 15mMultiple Airlines

Deal found 21/8£713

Tue 11/1116:00LGW - USM

1 stop19h 55mMultiple Airlines

Sun 23/1118:15USM - LGW

2 stops31h 15mMultiple Airlines

Deal found 21/8£716

Thu 27/1117:05LHR - USM

2 stops21h 00mKLM

Mon 29/1207:55USM - LHR

2 stops19h 55mKLM

Deal found 21/8£716

Mon 10/1118:40LHR - USM

2 stops19h 25mSWISS

Sun 23/1109:20USM - LHR

2 stops19h 20mSWISS

Deal found 21/8£720

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 2025.

Mon 10/1110:30LGW - USM

2 stops22h 05mMultiple Airlines

Sun 30/1119:10USM - LGW

2 stops25h 50mMultiple Airlines

Deal found 21/8£705

Mon 27/1020:05LHR - USM

2 stops42h 00mSWISS

Fri 28/1116:25USM - LHR

2 stops22h 40mSWISS

Deal found 21/8£710

Tue 3/218:15LCY - USM

2 stops35h 50mLufthansa

Tue 24/213:25USM - LCY

2 stops34h 15mLufthansa

Deal found 20/8£797

Mon 17/1114:05STN - USM

2 stops17h 50mEmirates

Mon 24/1119:10USM - STN

2 stops23h 55mEmirates

Deal found 21/8£896

Sat 8/1120:05LHR - USM

2 stops42h 00mMultiple Airlines

Sat 22/1110:00USM - LHR

2 stops18h 40mMultiple Airlines

Deal found 21/8£705

Thu 27/1112:05LHR - USM

2 stops26h 00mSWISS

Fri 12/1216:25USM - LHR

2 stops22h 40mSWISS

Deal found 20/8£711

Sun 28/922:05LHR - USM

2 stops32h 40mMultiple Airlines

Fri 17/1013:30USM - LHR

2 stops23h 25mMultiple Airlines

Deal found 22/8£707

Tue 28/1018:40LHR - USM

2 stops19h 25mSWISS

Wed 26/1116:25USM - LHR

2 stops22h 40mSWISS

Deal found 21/8£712

Mon 10/1118:40LHR - USM

2 stops19h 25mMultiple Airlines

Sat 22/1109:20USM - LHR

2 stops19h 20mMultiple Airlines

Deal found 21/8£707

Wed 29/1019:10LCY - USM

2 stops18h 55mSWISS

Wed 12/1110:00USM - LCY

2 stops29h 35mSWISS

Deal found 20/8£725

Mon 12/120:15STN - USM

2 stops28h 55mEmirates

Tue 20/117:40USM - STN

2 stops25h 25mEmirates

Deal found 21/8£899

Thu 27/1106:00LHR - USM

2 stops30h 50mMultiple Airlines

Fri 12/1216:25USM - LHR

2 stops22h 40mMultiple Airlines

Deal found 21/8£707

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 22 August 2025 and is based on user searches.

Sun 31/810:00LHR - USM

2 stops26h 20mMultiple Airlines

Thu 27/1113:25USM - LHR

2 stops24h 10mMultiple Airlines

Deal found 21/8£737

Tue 2/922:05LHR - USM

2 stops33h 40mMultiple Airlines

Thu 2/1008:10USM - LHR

2 stops28h 45mMultiple Airlines

Deal found 21/8£710

Sat 6/917:55STN - USM

3 stops42h 35mMultiple Airlines

Tue 16/908:45USM - STN

3 stops44h 40mMultiple Airlines

Deal found 20/8£755

Thu 11/918:40LGW - USM

2 stops20h 30mMultiple Airlines

Tue 23/908:45USM - LGW

2 stops39h 05mMultiple Airlines

Deal found 21/8£753

Thu 11/918:40LGW - USM

2 stops20h 30mSWISS

Tue 23/908:45USM - LGW

2 stops39h 05mSWISS

Deal found 20/8£757

Thu 18/909:00LGW - USM

2 stops29h 25mQatar Airways

Mon 29/908:00USM - LGW

2 stops35h 25mQatar Airways

Deal found 21/8£749

Fri 19/910:00LHR - USM

2 stops20h 45mMultiple Airlines

Fri 26/913:30USM - LHR

2 stops23h 25mMultiple Airlines

Deal found 20/8£745

Fri 19/911:25LGW - USM

2 stops20h 20mMultiple Airlines

Fri 26/920:50USM - LGW

2 stops40h 05mMultiple Airlines

Deal found 20/8£768

Sat 20/922:05LHR - USM

2 stops33h 40mMultiple Airlines

Sat 18/1008:20USM - LHR

2 stops28h 35mMultiple Airlines

Deal found 21/8£733

Sun 21/911:25LGW - USM

2 stops25h 05mMultiple Airlines

Fri 3/1008:50USM - LGW

3 stops40h 55mMultiple Airlines

Deal found 20/8£739

Sun 28/922:05LHR - USM

2 stops32h 40mMultiple Airlines

Fri 17/1013:30USM - LHR

2 stops23h 25mMultiple Airlines

Deal found 22/8£707

Sun 28/919:00LGW - USM

2 stops20h 35mMultiple Airlines

Fri 17/1011:25USM - LGW

2 stops33h 35mMultiple Airlines

Deal found 22/8£734

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 2025.

Sat 13/921:50LGW - USM

3 stops38h 10mMultiple Airlines

Deal found 22/8£312

Fri 12/921:50LGW - USM

3 stops56h 05mMultiple Airlines

Deal found 22/8£324

Tue 9/921:50LGW - USM

3 stops40h 35mMultiple Airlines

Deal found 22/8£334

Wed 27/821:50LGW - USM

3 stops39h 30mMultiple Airlines

Deal found 22/8£339

Fri 12/900:20STN - USM

3 stops53h 35mMultiple Airlines

Deal found 22/8£341

Sun 5/1007:00STN - USM

3 stops53h 30mMultiple Airlines

Deal found 21/8£344

Sat 4/1007:30STN - USM

3 stops45h 35mMultiple Airlines

Deal found 21/8£348

Sat 13/922:05LHR - USM

3 stops33h 50mMultiple Airlines

Deal found 22/8£350

Tue 9/922:05STN - USM

3 stops40h 45mMultiple Airlines

Deal found 22/8£359

Mon 6/1007:30STN - USM

3 stops29h 00mMultiple Airlines

Deal found 20/8£364

Sun 5/1021:50LGW - USM

3 stops38h 40mMultiple Airlines

Deal found 21/8£365

Sat 4/1021:50LGW - USM

3 stops31h 15mMultiple Airlines

Deal found 21/8£368

Fly from

Route

Depart

Return

Price

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 10/11

10:30-15:35

2 stops22h 05m

Ko Samui

Sun 30/11

19:10-14:00

2 stops25h 50m

£705

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sat 8/11

20:05-21:05

2 stops42h 00m

Ko Samui

Sat 22/11

10:00-21:40

2 stops18h 40m

£705

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sun 28/9

22:05-12:45

2 stops32h 40m

Ko Samui

Fri 17/10

13:30-06:55

2 stops23h 25m

£707

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 10/11

18:40-21:05

2 stops19h 25m

Ko Samui

Sat 22/11

09:20-21:40

2 stops19h 20m

£707

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 27/11

06:00-19:50

2 stops30h 50m

Ko Samui

Fri 12/12

16:25-08:05

2 stops22h 40m

£707

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sun 5/10

22:05-12:45

2 stops32h 40m

Ko Samui

Sun 12/10

13:30-06:55

2 stops23h 25m

£709

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 27/10

20:05-21:05

2 stops42h 00m

Ko Samui

Fri 28/11

16:25-08:05

2 stops22h 40m

£710

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 12/11

16:00-16:25

1 stop17h 25m

Ko Samui

Wed 26/11

08:50-18:20

2 stops40h 30m

£710

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 2/9

22:05-13:45

2 stops33h 40m

Ko Samui

Thu 2/10

08:10-06:55

2 stops28h 45m

£710

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 27/11

12:05-21:05

2 stops26h 00m

Ko Samui

Fri 12/12

16:25-08:05

2 stops22h 40m

£711

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 60 results

...

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?

To ensure you get the cheapest price possible for a flight to Ko Samui, you should look to book at least 80 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.

How long is the flight to Ko Samui?

On average, a flight from London to Ko Samui takes 18 hours 43 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.

When is the cheapest time to fly to Ko Samui?

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

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

The most popular airlines flying from London to Ko Samui are EVA Air, Thai Airways 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, Air France and SWISS.

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).

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

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

EVA Air

8.4

Very Good

1,232 reviews

EVA Air

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Singapore Airlines

8.1

Very Good

1,347 reviews

EVA Air

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Thai Airways

7.8

Good

344 reviews

EVA Air

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Qatar Airways

7.4

Good

3,610 reviews

EVA Air

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

British Airways

6.7

Okay

7,292 reviews

EVA Air

8.4

Very Good

1,232 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

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 £45, while return flights cost around £36.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £390, however they can be found for as little as £48.
Where does the fastest flight to Ko Samui depart from?
For those looking to save time traveling to Ko Samui, Birmingham offers the quickest one-way flight (16 hours 55 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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£312+ 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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 858,174 searches and data was last updated on 22 August 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Ko Samui

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 2025.

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 2025.

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

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 London to Ko Samui. Price data was last updated on 8 August 2025.

How long is the flight to Ko Samui?

When is the cheapest time to fly to Ko Samui?

Use this chart to determine the cheapest time to fly return from London to Ko Samui. Price data was last updated on 16 December 2024.

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

What are the cheapest airlines that fly to Ko Samui?

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

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.

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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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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 2025.