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

EVA Air, at $1,056, was found to be the cheapest airline from London Heathrow Airport to Koh Samui.Alternate airlines to your destination round-trip include Emirates and SWISS. EVA Air is currently priced 12% below the average price you’ll pay for this route.

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

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

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

Users have found that flying from London Heathrow Airport to Koh Samui on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Travelers have found it’s best to book a flight 14 days in advance to save up to 2% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 14 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Koh Samui 1-2 weeks in advance for as low as $976, or $1,284 for flights within the next 24 hours.

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

The best pricing can be found in the month of September. Prices to Koh Samui from London Heathrow Airport average $1,225. You can even find prices in September for less than $1,225, as users have found deals to Koh Samui from as low as $863. The month of December appears to be one of the more expensive times to travel to Koh Samui from London Heathrow Airport. Flying in the targeted month can save you up to 38%.

Most accurate provider : When it comes to deals on London Heathrow Airport-Koh Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Koh Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Koh Samui flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on London Heathrow Airport-Koh Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Koh Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Koh Samui from London Heathrow?

For a flight from London Heathrow to Koh Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Koh Samui airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Ko Samui from London Heathrow on a regular basis.

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 vacation 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.

$775+ Flights from London Heathrow Airport to Koh Samui

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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

Cheap flight deals from Heathrow to Koh Samui

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,056 (FlightHub)
One-way from	$775 (Etihad Airways)
Popular in	December
Cheapest in	September
Average price	$1,634

Provider with most accurate pricing for London Heathrow-Ko Samui flight deals.

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Provider most trusted by Cheapflights users for London Heathrow-Ko Samui flights.

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From London Heathrow to Ko Samui

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One-way flight from London Heathrow to Ko Samui

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High demand for flights, 8% potential price rise

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Best time to find cheap flights, 3% potential price drop

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Average for round-trip flights in December 2024

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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 December 22, 2024.

Fri 12/2711:00 amLHR - USM

1 stop25h 35mMultiple Airlines

Tue 1/1411:40 amUSM - LHR

2 stops31h 25mMultiple Airlines

Deal found 12/21

$2,790

Mon 12/2311:00 amLHR - USM

1 stop25h 35mCathay Pacific

Mon 1/1311:40 amUSM - LHR

2 stops32h 50mCathay Pacific

Deal found 12/21

$2,888

Best flights from Heathrow to Koh Samui
Discover carefully curated flight deals from Heathrow to Koh Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

Mon 5/129:35 pmLHR - USM

1 stop18h 00mEVA Air

Thu 5/298:45 amUSM - LHR

1 stop16h 40mEVA Air

Deal found 12/21

$1,056

Tue 3/253:50 pmLHR - USM

2 stops18h 10mEmirates

Wed 4/309:10 pmUSM - LHR

2 stops23h 15mEmirates

Deal found 12/20

$1,068

Tue 5/2012:10 pmLHR - USM

2 stops27h 05mSWISS

Tue 6/39:15 amUSM - LHR

2 stops28h 40mSWISS

Deal found 12/21

$1,070

Sun 3/309:30 amLHR - USM

2 stops20h 10mEtihad Airways

Thu 5/15:55 pmUSM - LHR

2 stops24h 50mEtihad Airways

Deal found 12/20

$1,081

Wed 3/265:50 pmLHR - USM

2 stops17h 50mMultiple Airlines

Tue 4/229:15 amUSM - LHR

2 stops18h 30mMultiple Airlines

Deal found 12/20

$1,135

Sat 3/297:25 pmLHR - USM

2 stops18h 05mAustrian Airlines

Mon 4/2810:05 amUSM - LHR

2 stops17h 35mAustrian Airlines

Deal found 12/20

$1,266

Tue 3/258:35 amLHR - USM

2 stops17h 05mQatar Airways

Thu 4/245:50 pmUSM - LHR

2 stops19h 40mQatar Airways

Deal found 12/20

$1,368

Thu 3/279:10 amLHR - USM

1 stop15h 50mSingapore Airlines

Mon 4/284:25 pmUSM - LHR

1 stop19h 30mSingapore Airlines

Deal found 12/20

$1,386

Wed 4/27:30 amLHR - USM

2 stops19h 05mFinnair

Tue 4/299:30 pmUSM - LHR

2 stops30h 40mFinnair

Deal found 12/20

$1,420

Tue 4/17:35 pmLHR - USM

1 stop16h 45mBritish Airways

Sun 4/274:25 pmUSM - LHR

1 stop20h 05mBritish Airways

Deal found 12/20

$1,429

Mon 1/135:50 pmLHR - USM

1 stop18h 45mCathay Pacific

Tue 1/2111:40 amUSM - LHR

2 stops32h 55mCathay Pacific

Deal found 12/21

$1,732

Last-minute flights from Heathrow to Koh Samui
Discover last-minute flight deals from Heathrow to Koh Samui. Data last updated December 22, 2024 and is based on user searches.

Sun 12/296:50 amLHR - USM

2 stops29h 45mCathay Pacific

Sun 1/1211:40 amUSM - LHR

1 stop26h 20mCathay Pacific

Deal found 12/21

$3,313

Wed 1/16:45 amLHR - USM

2 stops29h 50mMultiple Airlines

Wed 2/1211:40 amUSM - LHR

1 stop25h 40mMultiple Airlines

Deal found 12/21

$1,810

Sat 1/119:10 amLHR - USM

1 stop18h 40mSingapore Airlines

Sun 1/197:25 pmUSM - LHR

1 stop19h 00mSingapore Airlines

Deal found 12/21

$1,735

Sun 1/128:55 pmLHR - USM

2 stops27h 35mEtihad Airways

Tue 1/215:40 pmUSM - LHR

2 stops20h 05mEtihad Airways

Deal found 12/21

$1,407

Mon 1/138:35 amLHR - USM

2 stops17h 05mQatar Airways

Tue 1/215:05 pmUSM - LHR

2 stops20h 20mQatar Airways

Deal found 12/21

$1,484

Mon 1/135:50 pmLHR - USM

1 stop18h 45mCathay Pacific

Tue 1/2111:40 amUSM - LHR

2 stops32h 55mCathay Pacific

Deal found 12/21

$1,732

Tue 1/145:50 pmLHR - USM

2 stops19h 55mMultiple Airlines

Mon 1/2010:50 amUSM - LHR

2 stops17h 50mMultiple Airlines

Deal found 12/21

$1,353

One-way flights from Heathrow to Koh Samui
Search for one-way flight options from Heathrow to Koh Samui. Find affordable one-way fares based on user searches. Data last updated December 22, 2024.

Wed 1/88:55 pmLHR - USM

2 stops27h 50mEtihad Airways

Deal found 12/21

$775

Sun 3/308:40 pmLHR - USM

2 stops31h 30mEmirates

Deal found 12/21

$782

Find flights from Heathrow to Koh Samui within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Mon 5/12

9:35 pm-9:35 pm

1 stop18h 00m

Ko Samui

Thu 5/29

8:45 am-7:25 pm

1 stop16h 40m

$1,056

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Tue 3/25

3:50 pm-5:00 pm

2 stops18h 10m

Ko Samui

Wed 4/30

9:10 pm-2:25 pm

2 stops23h 15m

$1,068

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Tue 5/20

12:10 pm-9:15 pm

2 stops27h 05m

Ko Samui

Tue 6/3

9:15 am-7:55 am

2 stops28h 40m

$1,070

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Sun 3/30

9:30 am-11:40 am

2 stops20h 10m

Ko Samui

Thu 5/1

5:55 pm-12:45 pm

2 stops24h 50m

$1,081

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Wed 3/26

5:50 pm-6:40 pm

2 stops17h 50m

Ko Samui

Tue 4/22

9:15 am-9:45 pm

2 stops18h 30m

$1,135

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Sat 3/29

7:25 pm-8:30 pm

2 stops18h 05m

Ko Samui

Mon 4/28

10:05 am-9:40 pm

2 stops17h 35m

$1,266

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Tue 3/25

8:35 am-8:40 am

2 stops17h 05m

Ko Samui

Thu 4/24

5:50 pm-7:30 am

2 stops19h 40m

$1,368

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Thu 3/27

9:10 am-8:00 am

1 stop15h 50m

Ko Samui

Mon 4/28

4:25 pm-5:55 am

1 stop19h 30m

$1,386

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Wed 4/2

7:30 am-8:35 am

2 stops19h 05m

Ko Samui

Tue 4/29

9:30 pm-10:10 pm

2 stops30h 40m

$1,420

LondonKoh Samui

LHR - USM

LHRUSM

London Heathrow

Thu 3/27

6:55 pm-6:15 pm

1 stop16h 20m

Ko Samui

Fri 4/25

1:30 pm-6:30 am

1 stop23h 00m

$1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 13 results

Compare providers for flights from Heathrow to Koh Samui

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Koh Samui in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy2 stars	Trust Score*2 stars
oojo	Price Accuracy3 stars	Trust Score*2 stars
Flightnetwork	Price Accuracy2 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on London Heathrow Airport-Koh Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Koh Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Koh Samui flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on London Heathrow Airport-Koh Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Koh Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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?

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 time of day to fly from LHR to USM?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Koh Samui at noon. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight in the morning.

Rainfall in Koh Samui by month

In terms of precipitation, rainfall in Koh Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Koh Samui

To help decide which airline to fly from London to Koh Samui, see what other customers have to say about British Airways and Cathay Pacific. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,265 reviews

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

1,265 reviews

EVA Air

8.4

Very good

1,265 reviews

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

3,398 reviews

EVA Air

8.4

Very good

1,265 reviews

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

1,331 reviews

EVA Air

8.4

Very good

1,265 reviews

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.

Finnair

7.7

Good

1,283 reviews

EVA Air

8.4

Very good

1,265 reviews

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.

Qatar Airways

7.5

Good

3,789 reviews

EVA Air

8.4

Very good

1,265 reviews

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

What airport do you fly into for flights to Koh Samui from London Heathrow?
For a flight from London Heathrow to Koh Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Koh Samui airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Ko Samui from London Heathrow on a regular basis.
What are the cheapest airlines flying from London Heathrow Airport to Koh Samui round-trip?
EVA Air, at $1,056, was found to be the cheapest airline from London Heathrow Airport to Koh Samui.Alternate airlines to your destination round-trip include Emirates and SWISS. EVA Air is currently priced 12% below the average price you’ll pay for this route.
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 vacation 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Koh Samui

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Koh Samui to Bangkok Suvarnabhumi Airport flights

Koh Samui to Singapore flights

Top airline flying from Heathrow to Koh Samui

Airline	Cheapest	Average	Flexibility	On-time
EVA Air	Cheapest$1,090	Average$1,200	FlexibilityNo cancel fee	On-time74%

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$775+ Cheap flights from Heathrow (LHR) to Koh Samui (USM)

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to Koh Samui with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheap flight deals from Heathrow to Koh Samui

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Koh Samui

Cheapest flights from Heathrow to Koh SamuiExplore 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 December 22, 2024.

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 December 22, 2024.

Find flights from Heathrow to Koh Samui within your budget

Compare providers for flights from Heathrow to Koh Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Koh Samui in December.

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.

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 round-trip flight from Heathrow to Koh Samui. Price data was last updated on December 20, 2024.

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 December 22, 2024.

Rainfall in Koh Samui by month

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

Temperature in Koh Samui by month

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

Reviews of airlines servicing Koh Samui

To help decide which airline to fly from London to Koh Samui, see what other customers have to say about British Airways and Cathay Pacific. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

Can I find deals for business class flights from Heathrow to Koh 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.

Alternative routes for Heathrow to Koh Samui

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Heathrow to Koh Samui

100% Free

Book with Flexibility

Travel Smart

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 December 22, 2024.