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, SWISS 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 £50, while return flights cost around £72.

How much is a return flight to Ko Samui?

A return flight to Ko Samui will typically cost around £225, however they can be found for as little as £96.

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 25 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).

£291+ Flights to Ko Samui, Thailand

Flights to Ko Samui in 2025

Return from	£741
One-way from	£291
Popular in	December
Cheapest in	September
Average price	£1,041

6/10-15/10
4 total stops
62h 10m total
London to Ko Samui

Search Deals

4/5
3 total stops
51h 45m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£28 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 April 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 28 April 2025.

Sun 5/1005:45LGW - USM

2 stops44h 05mMultiple Airlines

Thu 16/1019:25USM - LGW

2 stops37h 20mMultiple Airlines

Deal found 28/4£739

Mon 6/1020:55LHR - USM

2 stops31h 35mMultiple Airlines

Wed 15/1012:10USM - LHR

2 stops30h 35mMultiple Airlines

Deal found 27/4£741

Wed 11/613:05LCY - USM

2 stops18h 40mSWISS

Wed 18/610:05USM - LCY

2 stops38h 40mSWISS

Deal found 27/4£742

Sat 14/613:45LHR - USM

2 stops18h 00mSWISS

Fri 27/609:30USM - LHR

2 stops28h 25mSWISS

Deal found 27/4£749

Fri 29/821:35LHR - USM

1 stop16h 55mEVA Air

Thu 11/909:15USM - LHR

1 stop16h 05mEVA Air

Deal found 27/4£757

Tue 4/1109:20LGW - USM

1 stop26h 10mSingapore Airlines

Tue 18/1111:45USM - LGW

1 stop25h 40mSingapore Airlines

Deal found 27/4£758

Wed 4/619:30LHR - USM

2 stops16h 15mAustrian Airlines

Thu 26/619:15USM - LHR

2 stops19h 30mAustrian Airlines

Deal found 27/4£774

Tue 2/909:00LGW - USM

2 stops19h 30mQatar Airways

Fri 12/915:25USM - LGW

2 stops21h 15mQatar Airways

Deal found 27/4£780

Thu 5/607:25LHR - USM

2 stops28h 20mLufthansa

Tue 1/713:30USM - LHR

2 stops24h 45mLufthansa

Deal found 27/4£789

Sun 9/1121:35LHR - USM

1 stop15h 15mThai Airways

Mon 24/1108:30USM - LHR

1 stop18h 05mThai Airways

Deal found 27/4£819

Tue 2/909:55LHR - USM

2 stops20h 50mKLM

Fri 12/908:45USM - LHR

2 stops18h 10mKLM

Deal found 27/4£828

Tue 3/617:15LGW - USM

2 stops19h 15mTurkish Airlines

Tue 17/607:00USM - LGW

2 stops21h 20mTurkish Airlines

Deal found 28/4£832

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 28 April 2025.

Mon 6/1020:55LHR - USM

2 stops31h 35mMultiple Airlines

Wed 15/1012:10USM - LHR

2 stops30h 35mMultiple Airlines

Deal found 27/4£741

Wed 11/609:25LCY - USM

2 stops22h 20mSWISS

Wed 18/610:05USM - LCY

2 stops38h 40mSWISS

Deal found 27/4£742

Thu 5/619:30LHR - USM

2 stops17h 00mAustrian Airlines

Thu 26/619:15USM - LHR

2 stops19h 05mAustrian Airlines

Deal found 27/4£748

Fri 29/821:35LHR - USM

1 stop16h 55mEVA Air

Thu 11/909:15USM - LHR

1 stop16h 05mEVA Air

Deal found 27/4£757

Tue 2/909:00LGW - USM

2 stops19h 30mQatar Airways

Fri 12/915:25USM - LGW

2 stops21h 15mQatar Airways

Deal found 27/4£780

Thu 5/607:25LHR - USM

2 stops28h 20mLufthansa

Tue 1/713:30USM - LHR

2 stops24h 45mLufthansa

Deal found 27/4£789

Tue 2/909:55LHR - USM

2 stops20h 50mKLM

Fri 12/908:45USM - LHR

2 stops18h 10mKLM

Deal found 27/4£828

Tue 3/617:15LGW - USM

2 stops21h 15mTurkish Airlines

Tue 17/608:00USM - LGW

2 stops20h 20mTurkish Airlines

Deal found 27/4£832

Sat 23/812:30LHR - USM

1 stop14h 05mThai Airways

Sat 6/917:35USM - LHR

1 stop31h 35mThai Airways

Deal found 27/4£844

Mon 1/910:05LGW - USM

2 stops19h 35mEmirates

Sun 7/917:50USM - LGW

2 stops19h 30mEmirates

Deal found 27/4£883

Sun 15/611:25LGW - USM

2 stops21h 45mGulf Air

Sat 28/615:50USM - LGW

2 stops21h 05mGulf Air

Deal found 27/4£892

Mon 26/522:15LHR - USM

2 stops27h 05mCathay Pacific

Thu 5/610:55USM - LHR

1 stop39h 40mCathay Pacific

Deal found 28/4£892

Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 28 April 2025 and is based on user searches.

Mon 28/414:45LHR - USM

2 stops21h 30mMultiple Airlines

Mon 26/516:25USM - LHR

2 stops24h 05mMultiple Airlines

Deal found 27/4£744

Thu 1/508:05LHR - USM

2 stops20h 25mQatar Airways

Sun 11/517:55USM - LHR

2 stops26h 15mQatar Airways

Deal found 27/4£1,025

Tue 6/521:45LHR - USM

2 stops30h 45mMultiple Airlines

Fri 6/617:55USM - LHR

2 stops24h 50mMultiple Airlines

Deal found 28/4£748

Tue 6/509:25LHR - USM

1 stop16h 25mSingapore Airlines

Fri 6/619:25USM - LHR

1 stop18h 20mSingapore Airlines

Deal found 27/4£855

Tue 6/514:55LGW - USM

2 stops18h 50mMultiple Airlines

Fri 6/615:25USM - LGW

2 stops45h 15mMultiple Airlines

Deal found 28/4£870

Tue 6/510:15LGW - USM

1 stop18h 55mSingapore Airlines

Fri 6/619:25USM - LGW

1 stop17h 00mSingapore Airlines

Deal found 28/4£1,233

Sun 11/515:00LGW - USM

2 stops24h 35mMultiple Airlines

Fri 27/608:45USM - LGW

2 stops34h 15mMultiple Airlines

Deal found 27/4£755

Sun 11/521:35LHR - USM

1 stop18h 00mEVA Air

Tue 27/508:45USM - LHR

1 stop16h 35mEVA Air

Deal found 27/4£767

Thu 15/517:50LCY - USM

2 stops18h 25mKLM

Sun 15/608:45USM - LCY

2 stops17h 30mKLM

Deal found 27/4£865

Tue 20/517:10LHR - USM

2 stops22h 00mSWISS

Tue 3/616:25USM - LHR

2 stops21h 30mSWISS

Deal found 27/4£828

Mon 26/522:15LHR - USM

2 stops27h 05mCathay Pacific

Thu 5/610:55USM - LHR

1 stop39h 40mCathay Pacific

Deal found 28/4£892

Tue 27/519:20LCY - USM

2 stops19h 50mSWISS

Wed 4/616:25USM - LCY

2 stops22h 25mSWISS

Deal found 27/4£845

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 28 April 2025.

Sun 4/506:50LGW - USM

3 stops51h 45mMultiple Airlines

Deal found 27/4£291

Sun 4/507:10LTN - USM

3 stops51h 25mMultiple Airlines

Deal found 27/4£294

Sun 4/522:15LHR - USM

3 stops36h 20mMultiple Airlines

Deal found 27/4£356

Sun 4/507:00STN - USM

3 stops32h 35mMultiple Airlines

Deal found 27/4£413

Fri 27/613:45LHR - USM

2 stops20h 50mQatar Airways

Deal found 28/4£513

Sun 4/521:25LHR - USM

1 stop28h 10mThai Airways

Deal found 27/4£530

Fri 27/621:35LHR - USM

1 stop16h 55mEVA Air

Deal found 27/4£623

Tue 1/721:35LHR - USM

2 stops28h 40mMalaysia Airlines

Deal found 28/4£647

Mon 30/618:40LHR - USM

2 stops20h 30mSWISS

Deal found 28/4£671

Mon 30/618:35LGW - USM

2 stops20h 35mSWISS

Deal found 28/4£777

Sun 4/513:45LCY - USM

2 stops18h 00mKLM

Deal found 27/4£780

Tue 15/708:45LCY - USM

2 stops24h 25mMultiple Airlines

Deal found 27/4£885

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 5/10

05:45-07:50

2 stops44h 05m

Ko Samui

Thu 16/10

19:25-02:45

2 stops37h 20m

£739

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 6/10

20:55-10:30

2 stops31h 35m

Ko Samui

Wed 15/10

12:10-12:45

2 stops30h 35m

£741

LondonKo Samui

LCY - USM

LCYUSM

London City

Wed 11/6

13:05-13:45

2 stops18h 40m

Ko Samui

Wed 18/6

10:05-18:45

2 stops38h 40m

£742

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 5/6

19:30-18:30

2 stops17h 00m

Ko Samui

Thu 26/6

19:15-08:20

2 stops19h 05m

£748

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sat 14/6

13:45-13:45

2 stops18h 00m

Ko Samui

Fri 27/6

09:30-07:55

2 stops28h 25m

£749

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Fri 29/8

21:35-20:30

1 stop16h 55m

Ko Samui

Thu 11/9

09:15-19:20

1 stop16h 05m

£757

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

09:00-10:30

2 stops19h 30m

Ko Samui

Fri 12/9

15:25-06:40

2 stops21h 15m

£780

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 5/6

07:25-17:45

2 stops28h 20m

Ko Samui

Tue 1/7

13:30-08:15

2 stops24h 45m

£789

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 2/9

09:55-12:45

2 stops20h 50m

Ko Samui

Fri 12/9

08:45-20:55

2 stops18h 10m

£828

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 3/6

17:15-18:30

2 stops19h 15m

Ko Samui

Tue 17/6

07:00-22:20

2 stops21h 20m

£832

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 39 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 13 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 20 hours 58 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 British Airways.

EVA Air

From £962

Thai Airways

From £1,050

British Airways

From £979

Singapore Airlines

From £908

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from London to Ko Samui are Air France, KLM and Etihad Airways.

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, Singapore Airlines and Emirates. 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

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

EVA Air

8.4

Very Good

1,184 reviews

EVA Air

8.4

Very Good

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Singapore Airlines

8.1

Very Good

1,292 reviews

EVA Air

8.4

Very Good

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Emirates

8.0

Very Good

3,213 reviews

EVA Air

8.4

Very Good

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

KLM

7.8

Good

1,333 reviews

EVA Air

8.4

Very Good

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Thai Airways

7.7

Good

325 reviews

EVA Air

8.4

Very Good

1,184 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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, SWISS 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 £50, while return flights cost around £72.
How much is a return flight to Ko Samui?
A return flight to Ko Samui will typically cost around £225, however they can be found for as little as £96.
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 25 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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£291+ 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 4/5. 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 28 April 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 28 April 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 28 April 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 28 April 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 25 April 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 12 May 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, Singapore Airlines and Emirates. 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.

Fly with Cheapflights

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 28 April 2025.