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Cheap flights from London Heathrow Airport to Koh Samui from £473

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — USM
22 dec. — 29 dec.1
1 adult

The best prices from London Heathrow to Ko Samui are usually found in September or May, booked 4 days in advance, depart on a Monday or Tuesday and return on a Monday

Find flights from Heathrow to Koh Samui within your budget

Customise your flight search to find flights from Heathrow to Koh 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 17 december 2024.

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Price

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

lør. 22/2

19:25-20:40

2 stops18h 15m

Ko Samui

tor. 6/3

08:15-11:15

2 stops34h 00m

£823

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

lør. 15/3

20:55-07:10

2 stops27h 15m

Ko Samui

søn. 30/3

17:55-15:15

2 stops27h 20m

£826

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

lør. 3/5

21:35-20:30

1 stop16h 55m

Ko Samui

søn. 11/5

07:00-19:25

1 stop18h 25m

£827

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

lør. 19/4

21:25-07:20

1 stop27h 55m

Ko Samui

lør. 3/5

07:00-19:10

1 stop18h 10m

£829

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

tor. 13/2

17:50-13:05

2 stops36h 15m

Ko Samui

tor. 6/3

13:25-08:05

2 stops25h 40m

£833

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

lør. 1/3

11:15-21:05

2 stops26h 50m

Ko Samui

man. 17/3

11:40-10:45

2 stops30h 05m

£874

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

fre. 10/1

10:55-18:30

1 stop24h 35m

Ko Samui

tir. 21/1

08:55-15:35

1 stop37h 40m

£877

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

tir. 21/1

20:10-10:40

2 stops31h 30m

Ko Samui

ons. 26/2

11:40-05:50

2 stops25h 10m

£937

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

tir. 4/2

09:00-12:35

2 stops20h 35m

Ko Samui

tir. 11/2

11:40-08:00

2 stops27h 20m

£969

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

tir. 18/2

17:50-19:35

1 stop18h 45m

Ko Samui

tir. 18/3

11:40-13:35

2 stops32h 55m

£1,062

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 17 results
1
2

Cheap flight deals from Heathrow to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 december 2024.

Round-trip from

£823

One-way from

£473

Popular in

December

Cheapest in

September

Average price

£1,291
7/3-14/3
  • 7/3-14/3
  • 4 total stops
  • 53h 40m total
  • London to Koh Samui
Search Deals
30/1
  • 30/1
  • 3 total stops
  • 36h 15m total
  • London to Koh Samui
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Heathrow to Koh Samui

Cheapest flights from Heathrow to Koh Samui
Explore the most affordable flight options available from Heathrow to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 december 2024.

man. 23/1219:20LHR - USM
2 stops29h 25mMultiple Airlines
man. 13/121:15USM - LHR
2 stops24h 15mMultiple Airlines
Deal found 16/12£1,141
tir. 31/1220:05LHR - USM
2 stops42h 00mSWISS
ons. 8/116:25USM - LHR
2 stops33h 50mSWISS
Deal found 15/12£1,331
fre. 27/1220:35LHR - USM
1 stop28h 25mSingapore Airlines
tir. 14/108:55USM - LHR
1 stop28h 00mSingapore Airlines
Deal found 16/12£1,509
tir. 31/1216:50LHR - USM
1 stop19h 45mCathay Pacific
ons. 8/111:40USM - LHR
1 stop25h 40mCathay Pacific
Deal found 15/12£1,597
ons. 25/1218:55LHR - USM
2 stops41h 40mQatar Airways
tor. 16/111:40USM - LHR
2 stops32h 40mQatar Airways
Deal found 16/12£1,659
fre. 27/1216:45LHR - USM
2 stops45h 20mTurkish Airlines
tir. 14/121:30USM - LHR
2 stops25h 35mTurkish Airlines
Deal found 16/12£1,879
tir. 24/1218:55LHR - USM
1 stop16h 20mBritish Airways
man. 6/116:25USM - LHR
1 stop20h 00mBritish Airways
Deal found 16/12£2,029

Best time to book a flight from Heathrow to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Heathrow 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.

Travel insights for flights from Heathrow to Koh Samui

Get recent, data-driven insights about flights from Heathrow to Koh Samui including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Koh Samui?

Use this chart to determine the optimal time to book a return flight from Heathrow to Koh Samui. Price data was last updated on 13 December 2024.

The best time to book flights from London Heathrow Airport to Koh Samui is 4 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Koh Samui?

Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Koh Samui (average of £1,019). Flying from London Heathrow Airport to Koh Samui in December is currently the most expensive (average of £1,335). 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 LHR to USM?

Find hourly flight availability from Heathrow to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 december 2024.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Koh Samui at midday. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Koh Samui?

Use this chart to determine the cheapest time to fly return from Heathrow to Koh Samui. Price data was last updated on 8 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Koh Samui flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Koh Samui by month

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

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 58.0 mm.

Temperature in Koh Samui by month

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

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated 17 december 2024.
Get a feel of what it's like to fly with Qatar Airways, Cathay Pacific and Singapore Airlines from London to Koh Samui by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very Good
1,276 reviews
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Emirates
8.1
Very Good
3,411 reviews
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Singapore Airlines
8.1
Very Good
1,329 reviews
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

KLM
7.8
Good
1,351 reviews
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Thai Airways
7.8
Good
359 reviews
EVA Air
8.4
Very Good
1,276 reviews
Check prices

Comfort

8.2

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Koh 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 Koh Samui from London Heathrow?

    Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from London Heathrow. On average, Ko Samui has 0 inbound flights from London Heathrow per day from 10 airlines. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

  • What are the cheapest airlines flying from London Heathrow Airport to Koh Samui round-trip?

    Our cheapest airline available from London Heathrow Airport to Koh Samui is EVA Air. Our recent data shows that you can find tickets from as low as £825 on this airline. Additional options worth looking into are Etihad Airways and Thai Airways, starting at £826 and £829 round-trip. EVA Air is currently priced 13% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to Koh Samui one-way?

    £556 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on Thai Airways and Singapore Airlines, with prices starting from £589 and £615, respectively.

  • Can I find deals for flights from Heathrow to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Heathrow to Koh Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Koh Samui?

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

  • Can I find deals for business class flights from Heathrow to Koh Samui?

    Yes. Cheapflights offers flight deals from Heathrow to Koh 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 London Heathrow Airport to Koh Samui?

    Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Koh Samui (average of £1,019). Flying from London Heathrow Airport to Koh Samui in December is currently the most expensive (average of £1,335). 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

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Alternative routes for Heathrow to Koh 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 Heathrow to Koh Samui

Discover the top 10 airlines that operate flights from Heathrow to Koh 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 17 december 2024.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£106Average£188FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Air FranceCheapest£633Average£781FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£648Average£793FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£663Average£737FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest£680Average£837FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Singapore AirlinesCheapest£732Average£1,078FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EVA AirCheapest£755Average£857FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
British AirwaysCheapest£766Average£1,137FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Qatar AirwaysCheapest£850Average£1,039FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Thai AirwaysCheapest£870Average£1,080FlexibilityNo cancel feeOn-time77%
Search Thai 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 Heathrow to Koh Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Koh 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 Heathrow to Koh Samui?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Koh Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Koh Samui with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Koh Samui, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Koh Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Koh Samui from Heathrow today and book when prices fit your budget.

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