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Cheap flights from the United Kingdom to Ko Samui from £313

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — USM
7 Apr — 14 Apr1
1 adult

Cheap flight deals from United Kingdom to Ko Samui

Keep the following information in mind while searching for United Kingdom to Ko Samui flight deals. Data was last updated 2 April 2025.

Round-trip from

£707

One-way from

£313

Popular in

December

Cheapest in

September

Average price

£1,078
Air France
  • Air France
  • 1/6-11/6
  • 4 total stops
  • 40h 30m total
  • United Kingdom to Ko Samui
Search Deals
25/4
  • 25/4
  • 3 total stops
  • 42h 10m total
  • United Kingdom to Ko Samui
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from United Kingdom to Ko Samui

Cheapest flights from United Kingdom to Ko Samui
Explore the most affordable flight options available from United Kingdom to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2025.

Sun 1/617:30NCL - USM
2 stops21h 40mMultiple Airlines
Wed 11/608:45USM - NCL
2 stops18h 50mMultiple Airlines
Deal found 1/4£707
Mon 9/617:35BHX - USM
2 stops21h 35mMultiple Airlines
Mon 23/610:55USM - BHX
2 stops36h 55mMultiple Airlines
Deal found 1/4£717
Mon 5/509:25LHR - USM
1 stop19h 55mMultiple Airlines
Tue 20/511:25USM - LHR
2 stops37h 45mMultiple Airlines
Deal found 1/4£762
Tue 6/521:35LHR - USM
1 stop14h 55mEVA Air
Fri 6/608:45USM - LHR
1 stop16h 35mEVA Air
Deal found 1/4£769
Wed 14/513:05LCY - USM
2 stops18h 40mMultiple Airlines
Wed 28/519:30USM - LCY
3 stops42h 50mMultiple Airlines
Deal found 1/4£772
Sat 26/419:30LHR - USM
2 stops16h 15mAustrian Airlines
Tue 27/519:30USM - LHR
2 stops18h 50mAustrian Airlines
Deal found 1/4£774
Thu 15/513:05LCY - USM
2 stops17h 40mSWISS
Sun 15/616:25USM - LCY
2 stops21h 10mSWISS
Deal found 1/4£775
Tue 4/1115:10LGW - USM
3 stops22h 35mMultiple Airlines
Tue 25/1115:35USM - LGW
2 stops21h 30mMultiple Airlines
Deal found 1/4£782
Thu 1/507:05STN - USM
3 stops27h 50mMultiple Airlines
Thu 8/519:25USM - STN
2 stops23h 30mMultiple Airlines
Deal found 1/4£789
Fri 2/508:40LHR - USM
2 stops30h 30mSWISS
Mon 2/616:25USM - LHR
2 stops21h 30mSWISS
Deal found 1/4£789
Wed 28/518:35LGW - USM
2 stops36h 10mSWISS
Wed 2/716:25USM - LGW
2 stops31h 30mSWISS
Deal found 1/4£794
Tue 4/1121:35LHR - USM
1 stop26h 35mThai Airways
Tue 25/1110:00USM - LHR
1 stop16h 35mThai Airways
Deal found 1/4£794

Cheapflights Fare Finder

Customise your flight search to find flights from United Kingdom to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 April 2025.
Use the filters below to find and compare flights from the United Kingdom to Ko Samui that are best for you.

Fly from

United Kingdom

Fly to

Ko Samui

Route

Depart

Return

Price

Newcastle upon TyneKo Samui

NCL - USM

NCLUSM

Newcastle upon Tyne

Sun 1/6

17:30-21:10

2 stops21h 40m

Ko Samui

Wed 11/6

08:45-21:35

2 stops18h 50m

£707

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Mon 9/6

17:35-21:10

2 stops21h 35m

Ko Samui

Mon 23/6

10:55-17:50

2 stops36h 55m

£717

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 5/5

09:25-11:20

1 stop19h 55m

Ko Samui

Tue 20/5

11:25-19:10

2 stops37h 45m

£762

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 6/5

21:35-18:30

1 stop14h 55m

Ko Samui

Fri 6/6

08:45-19:20

1 stop16h 35m

£769

LondonKo Samui

LCY - USM

LCYUSM

London City

Wed 14/5

13:05-13:45

2 stops18h 40m

Ko Samui

Wed 28/5

19:30-08:20

3 stops42h 50m

£772

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sat 26/4

19:30-17:45

2 stops16h 15m

Ko Samui

Tue 27/5

19:30-08:20

2 stops18h 50m

£774

LondonKo Samui

LCY - USM

LCYUSM

London City

Thu 15/5

13:05-12:45

2 stops17h 40m

Ko Samui

Sun 15/6

16:25-07:35

2 stops21h 10m

£775

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Fri 2/5

08:40-21:10

2 stops30h 30m

Ko Samui

Mon 2/6

16:25-07:55

2 stops21h 30m

£789

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 28/5

18:35-12:45

2 stops36h 10m

Ko Samui

Wed 2/7

16:25-17:55

2 stops31h 30m

£794

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 28/4

06:55-21:10

2 stops32h 15m

Ko Samui

Mon 12/5

13:30-12:40

2 stops29h 10m

£796

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 53 results
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Best time to book a flight from United Kingdom to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from United Kingdom 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 from the United Kingdom to Ko Samui

What is the cheapest month to book a flight from United Kingdom to Ko Samui?

Currently, August is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £1,019). Flying from United Kingdom to Ko Samui in December is currently the most expensive (average of £1,621). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to USM?

Find hourly flight availability from United Kingdom to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 April 2025.

When flying from United Kingdom to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 2 April 2025.
See what other customers who have flown with EVA Air, Singapore Airlines and Emirates from United Kingdom to Ko Samui have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very Good
1,170 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Singapore Airlines
8.1
Very Good
1,288 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Emirates
8.0
Very Good
3,193 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
KLM
7.8
Good
1,323 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Thai Airways
7.8
Good
319 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from United Kingdom?

    Ko Samui (USM), located 2.1 mi from the city center, is the airport you fly into when you book flights from United Kingdom to Ko Samui.

  • What are the cheapest airlines to fly from United Kingdom to Ko Samui one-way?

    £489 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Qatar Airways and EVA Air, with prices starting from £497 and £570, respectively.

  • What are the most popular routes from United Kingdom to Ko Samui?

    Most travelers choose London Heathrow - Ko Samui, London Gatwick - Ko Samui or London City - Ko Samui when deciding on the best route from United Kingdom to Ko Samui.

  • Can I find deals for flights from United Kingdom to Ko Samui that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Ko Samui.

  • Can I find deals for business class flights from United Kingdom to Ko Samui?

    Yes. Cheapflights offers flight deals from United Kingdom to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Ko Samui?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £1,019). Flying from United Kingdom to Ko Samui in December is currently the most expensive (average of £1,621). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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Alternative routes for United Kingdom to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Ko Samui

Discover the top 10 airlines that operate flights from United Kingdom to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 April 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£555Average£783FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest£620Average£810FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£635Average£1,033FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£646Average£824FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
LufthansaCheapest£677Average£832FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Singapore AirlinesCheapest£683Average£1,047FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Turkish AirlinesCheapest£687Average£817FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
EVA AirCheapest£742Average£834FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Austrian AirlinesCheapest£754Average£899FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
British AirwaysCheapest£758Average£1,100FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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 from United Kingdom to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Ko Samui?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Ko Samui for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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