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 £46, while return flights cost around £73.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £198, however they can be found for as little as £100.

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 (15 hours 35 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).

£322+ Flights to Ko Samui, Thailand

Flights to Ko Samui in 2025

Return from	£710
One-way from	£322
Popular in	December
Cheapest in	September
Average price	£798

7/9-20/9
4 total stops
59h 00m total
London to Ko Samui

Search Deals

8/9
3 total stops
30h 15m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£25 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for return flights in June 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 13 June 2025.

Sun 16/1106:35LGW - USM

2 stops19h 45mMultiple Airlines

Fri 28/1108:30USM - LGW

3 stops44h 35mMultiple Airlines

Deal found 11/6£712

Fri 5/1221:15LGW - USM

1 stop16h 30mBritish Airways

Fri 19/1219:00USM - LGW

1 stop17h 30mBritish Airways

Deal found 12/6£712

Sun 31/807:25LHR - USM

2 stops31h 45mLufthansa

Fri 12/916:25USM - LHR

2 stops29h 15mLufthansa

Deal found 11/6£712

Wed 2/707:25STN - USM

3 stops31h 00mMultiple Airlines

Mon 7/708:45USM - STN

3 stops40h 50mMultiple Airlines

Deal found 12/6£715

Wed 3/913:05LCY - USM

2 stops18h 40mSWISS

Wed 1/1016:25USM - LCY

2 stops22h 25mSWISS

Deal found 11/6£716

Tue 2/918:35LGW - USM

2 stops37h 10mSWISS

Fri 12/908:45USM - LGW

2 stops39h 05mSWISS

Deal found 12/6£717

Tue 2/919:15LHR - USM

3 stops36h 30mSWISS

Wed 8/1008:45USM - LHR

3 stops29h 30mSWISS

Deal found 12/6£723

Thu 30/1020:35LHR - USM

1 stop28h 25mSingapore Airlines

Fri 7/1119:25USM - LHR

1 stop30h 45mSingapore Airlines

Deal found 12/6£738

Mon 3/1117:10LHR - USM

2 stops20h 55mMultiple Airlines

Mon 1/1220:20USM - LHR

2 stops18h 45mMultiple Airlines

Deal found 12/6£743

Tue 2/917:00LCY - USM

2 stops22h 10mLufthansa

Tue 30/916:25USM - LCY

2 stops21h 45mLufthansa

Deal found 11/6£746

Fri 5/919:35LHR - USM

1 stop16h 40mBritish Airways

Wed 1/1013:30USM - LHR

1 stop21h 55mBritish Airways

Deal found 11/6£757

Mon 3/1109:50LCY - USM

2 stops28h 15mMultiple Airlines

Mon 1/1210:00USM - LCY

2 stops33h 50mMultiple Airlines

Deal found 12/6£759

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 13 June 2025.

Sun 7/906:00LHR - USM

2 stops33h 10mMultiple Airlines

Sat 20/912:05USM - LHR

2 stops25h 50mMultiple Airlines

Deal found 10/6£710

Tue 2/913:05LCY - USM

2 stops18h 40mSWISS

Fri 12/908:45USM - LCY

2 stops30h 00mSWISS

Deal found 10/6£711

Sun 31/807:25LHR - USM

2 stops31h 45mLufthansa

Fri 12/916:25USM - LHR

2 stops29h 15mLufthansa

Deal found 11/6£712

Thu 30/1020:35LHR - USM

1 stop28h 25mSingapore Airlines

Fri 7/1119:25USM - LHR

1 stop30h 45mSingapore Airlines

Deal found 12/6£738

Fri 5/919:35LHR - USM

1 stop16h 40mBritish Airways

Wed 1/1013:30USM - LHR

1 stop21h 55mBritish Airways

Deal found 11/6£757

Sat 30/806:00LHR - USM

2 stops29h 45mAustrian Airlines

Fri 12/919:15USM - LHR

2 stops19h 05mAustrian Airlines

Deal found 11/6£764

Fri 5/917:15LGW - USM

2 stops21h 35mTurkish Airlines

Mon 29/919:30USM - LGW

2 stops26h 45mTurkish Airlines

Deal found 11/6£774

Fri 5/1221:35LHR - USM

1 stop27h 10mThai Airways

Fri 19/1207:00USM - LHR

1 stop19h 35mThai Airways

Deal found 12/6£782

Wed 3/911:25LGW - USM

2 stops21h 20mGulf Air

Tue 30/915:50USM - LGW

2 stops21h 05mGulf Air

Deal found 11/6£787

Mon 17/1117:05LCY - USM

2 stops21h 00mKLM

Sun 30/1111:40USM - LCY

2 stops27h 30mKLM

Deal found 11/6£801

Mon 1/921:35LHR - USM

1 stop18h 00mEVA Air

Tue 16/908:00USM - LHR

1 stop17h 20mEVA Air

Deal found 11/6£811

Tue 11/1114:05STN - USM

2 stops18h 30mEmirates

Wed 19/1117:40USM - STN

2 stops25h 25mEmirates

Deal found 10/6£813

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 13 June 2025 and is based on user searches.

Fri 13/617:50LCY - USM

2 stops18h 25mKLM

Fri 20/610:55USM - LCY

2 stops27h 15mKLM

Deal found 12/6£967

Tue 17/621:35LHR - USM

1 stop18h 00mEVA Air

Tue 24/608:00USM - LHR

1 stop17h 20mEVA Air

Deal found 10/6£814

Tue 17/608:30LCY - USM

2 stops29h 15mMultiple Airlines

Mon 14/708:45USM - LCY

2 stops31h 20mMultiple Airlines

Deal found 10/6£817

Wed 18/610:00LHR - USM

2 stops21h 45mMultiple Airlines

Fri 4/715:50USM - LHR

2 stops21h 05mMultiple Airlines

Deal found 12/6£807

Wed 18/621:35LHR - USM

1 stop18h 00mEVA Air

Fri 4/708:00USM - LHR

1 stop17h 20mEVA Air

Deal found 12/6£882

Thu 19/622:05LHR - USM

2 stops32h 40mMultiple Airlines

Thu 24/708:20USM - LHR

2 stops28h 35mMultiple Airlines

Deal found 10/6£729

Tue 24/611:35LGW - USM

2 stops24h 10mMultiple Airlines

Sun 29/617:50USM - LGW

2 stops27h 20mMultiple Airlines

Deal found 11/6£747

Tue 24/614:55STN - USM

2 stops24h 15mEmirates

Sun 29/616:25USM - STN

2 stops26h 30mEmirates

Deal found 11/6£1,063

Wed 2/707:25STN - USM

3 stops25h 15mMultiple Airlines

Mon 7/708:45USM - STN

3 stops42h 25mMultiple Airlines

Deal found 10/6£714

Wed 2/709:30LHR - USM

2 stops21h 40mEtihad Airways

Mon 7/719:00USM - LHR

2 stops26h 15mEtihad Airways

Deal found 10/6£846

Wed 2/721:25LHR - USM

2 stops31h 05mQatar Airways

Mon 7/719:00USM - LHR

2 stops31h 25mQatar Airways

Deal found 11/6£880

Wed 2/719:20LCY - USM

2 stops19h 50mSWISS

Mon 7/709:15USM - LCY

2 stops29h 35mSWISS

Deal found 12/6£988

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 13 June 2025.

Mon 8/907:30STN - USM

3 stops30h 15mMultiple Airlines

Deal found 11/6£322

Fri 5/909:10LGW - USM

3 stops40h 10mMultiple Airlines

Deal found 11/6£344

Fri 26/908:40LHR - USM

3 stops40h 40mMultiple Airlines

Deal found 11/6£364

Mon 8/909:30LTN - USM

3 stops22h 25mMultiple Airlines

Deal found 11/6£385

Wed 3/909:25LCY - USM

2 stops22h 20mSWISS

Deal found 11/6£417

Fri 5/917:30LHR - USM

2 stops21h 40mLufthansa

Deal found 11/6£434

Tue 2/917:00LCY - USM

2 stops22h 10mLufthansa

Deal found 11/6£441

Tue 11/1114:05STN - USM

2 stops18h 30mEmirates

Deal found 11/6£480

Fri 27/609:30LHR - USM

2 stops26h 45mEtihad Airways

Deal found 10/6£535

Mon 23/621:35LHR - USM

1 stop16h 55mEVA Air

Deal found 10/6£550

Fri 15/809:20LCY - USM

3 stops23h 20mMultiple Airlines

Deal found 12/6£561

Fri 5/910:15LGW - USM

1 stop26h 15mSingapore Airlines

Deal found 11/6£567

Cheapflights Fare Finder

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

Fly from

Route

Depart

Return

Price

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 16/11

06:35-09:20

2 stops19h 45m

Ko Samui

Fri 28/11

08:30-22:05

3 stops44h 35m

£712

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/12

21:15-20:45

1 stop16h 30m

Ko Samui

Fri 19/12

19:00-05:30

1 stop17h 30m

£712

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sun 31/8

07:25-21:10

2 stops31h 45m

Ko Samui

Fri 12/9

16:25-15:40

2 stops29h 15m

£712

LondonKo Samui

STN - USM

STNUSM

London Stansted

Wed 2/7

07:25-20:25

3 stops31h 00m

Ko Samui

Mon 7/7

08:45-19:35

3 stops40h 50m

£715

LondonKo Samui

LCY - USM

LCYUSM

London City

Wed 3/9

13:05-13:45

2 stops18h 40m

Ko Samui

Wed 1/10

16:25-08:50

2 stops22h 25m

£716

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

18:35-13:45

2 stops37h 10m

Ko Samui

Fri 12/9

08:45-17:50

2 stops39h 05m

£717

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 2/9

19:15-13:45

3 stops36h 30m

Ko Samui

Wed 8/10

08:45-08:15

3 stops29h 30m

£723

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 30/10

20:35-08:00

1 stop28h 25m

Ko Samui

Fri 7/11

19:25-19:10

1 stop30h 45m

£738

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 3/11

17:10-21:05

2 stops20h 55m

Ko Samui

Mon 1/12

20:20-08:05

2 stops18h 45m

£743

LondonKo Samui

LCY - USM

LCYUSM

London City

Tue 2/9

17:00-21:10

2 stops22h 10m

Ko Samui

Tue 30/9

16:25-08:10

2 stops21h 45m

£746

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 44 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 82 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 3 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 KLM.

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

To help decide which airline to fly to Ko Samui, see what other customers have to say about EVA Air, Emirates and Singapore Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very Good

1,204 reviews

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Emirates

8.1

Very Good

3,265 reviews

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Singapore Airlines

8.1

Very Good

1,304 reviews

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

KLM

7.8

Good

1,358 reviews

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Thai Airways

7.7

Good

335 reviews

EVA Air

8.4

Very Good

1,204 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 £46, while return flights cost around £73.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £198, however they can be found for as little as £100.
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 (15 hours 35 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

Ko Tao

Ko Pha Ngan

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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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£322+ 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 8/9. 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 13 June 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 13 June 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 13 June 2025.

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 858,174 searches and data was last updated on 13 June 2025.

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 9 June 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

To help decide which airline to fly to Ko Samui, see what other customers have to say about EVA Air, Emirates and Singapore Airlines. You can also see how each airline stacks up 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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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 13 June 2025.