Can I get a flight from London Heathrow Airport to Ko Samui on EVA Air for under ฿46,601?

9 EVA Air flights from LHR to USM have recently been found on Cheapflights for under ฿46,601. Click here to find the best deals to Ko Samui for your desired dates.

How far ahead should I book a flight from London Heathrow Airport to Ko Samui with EVA Air?

Booking with EVA Air 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Ko Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Ko Samui with EVA Air?

Currently, the most affordable month to book a EVA Air flight from London Heathrow Airport to Ko Samui in August, with an average price of ฿33,087. Conversely, traveling with EVA Air from London Heathrow Airport to Ko Samui in December will be the most expensive, with an average cost of ฿58,218. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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.

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).

฿26,330+ EVA Air flights from Heathrow to Ko Samui

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Cheapest EVA Air flights from Heathrow to Ko Samui
Explore the most affordable EVA Air flight options available from Heathrow to Ko Samui. Find the lowest fares with prices last updated on 11 July 2026.

Fri 28/821:35

LHR

USM

1 stop18h 00m

EVA Air

Tue 6/1008:45

USM

LHR

1 stop16h 35m

EVA Air

Deal found 7/7฿38,779

Fri 28/821:35

LHR

USM

1 stop17h 15m

EVA Air

Fri 11/906:00

USM

LHR

1 stop19h 20m

EVA Air

Deal found 7/7฿41,475

Sun 30/821:35

LHR

USM

1 stop15h 25m

EVA Air

Tue 15/918:25

USM

LHR

1 stop30h 55m

EVA Air

Deal found 9/7฿41,641

Can I get a flight from London Heathrow Airport to Ko Samui on EVA Air for under ฿46,601?
9 EVA Air flights from LHR to USM have recently been found on Cheapflights for under ฿46,601. Click here to find the best deals to Ko Samui for your desired dates.

EVA Air flights from Heathrow to Ko Samui in 2026

One-way from	฿26,330
Return from	฿38,646
Popular in	December
Cheapest in	November
Average price (all airlines)	฿44,870

EVA Air
11/9
1 total stop
16h 55m total
London to Ko Samui

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EVA Air
2/9-30/9
2 total stops
34h 35m total
London to Ko Samui

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Highest demand for flights from London Heathrow to Ko Samui; 6% potential price increase.

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Best time to find cheap flights from London Heathrow to Ko Samui; 3% potential price drop.

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Average price for all London Heathrow to Ko Samui flights (one-way and round-trip).

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When is the best time to book a flight to Ko Samui with EVA Air?

The best time to book a flight to Ko Samui with EVA Air is 88 days before departure. On average, fares are higher if you book 86 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Ko Samui?

For Economy class flights, the cheapest month to fly this route is August. The most expensive months are December and July.

Best time to book a flight from Heathrow to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Heathrow with our price prediction graph.

LHR-USM

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EVA Air flights from London Heathrow Airport to Ko Samui (LHR - USM)

Find EVA Air flight deals from Heathrow to Ko Samui

Cheapest EVA Air flights from Heathrow to Ko SamuiExplore the most affordable EVA Air flight options available from Heathrow to Ko Samui. Find the lowest fares with prices last updated on 11 July 2026.

Explore the most affordable EVA Air flight options available from Heathrow to Ko Samui. Find the lowest fares with prices last updated on 11 July 2026.

Best EVA Air flights from Heathrow to Ko SamuiDiscover carefully curated EVA Air flight deals from Heathrow to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Discover carefully curated EVA Air flight deals from Heathrow to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Last-minute EVA Air flights from Heathrow to Ko SamuiDiscover last-minute EVA Air flight deals from Heathrow to Ko Samui. Data last updated 11 July 2026 and is based on user searches.

Discover last-minute EVA Air flight deals from Heathrow to Ko Samui. Data last updated 11 July 2026 and is based on user searches.

One-way EVA Air flights to Ko SamuiSearch for one-way EVA Air flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.

Search for one-way EVA Air flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.

Can I get a flight from London Heathrow Airport to Ko Samui on EVA Air for under ฿46,601?

EVA Air flights from Heathrow to Ko Samui in 2026

Find detailed information about EVA Air flights from Heathrow to Ko Samui. Explore the options provided by EVA Air to plan your journey from Heathrow to Ko Samui. Data last updated 11 July 2026.

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When is the best time to book a flight to Ko Samui with EVA Air?

Which month is the cheapest to fly Economy class from London Heathrow Airport to Ko Samui?

Rainfall in Ko Samui by month

Temperature in Ko Samui by month

Best time to book a flight from Heathrow to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Heathrow with our price prediction graph.

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Other EVA Air flights from Heathrow

Browse through other EVA Air flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 11 July 2026.

Complete your trip

Complete your trip to Ko Samui by adding a car rental and/or hotel reservation to your travel itinerary.

Other popular destinations in Asia

If Ko Samui is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 11 July 2026.

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Browse through some of the most popular routes that EVA Air offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 11 July 2026.

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Cheapest EVA Air flights from Heathrow to Ko Samui
Explore the most affordable EVA Air flight options available from Heathrow to Ko Samui. Find the lowest fares with prices last updated on 11 July 2026.

Best EVA Air flights from Heathrow to Ko Samui
Discover carefully curated EVA Air flight deals from Heathrow to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Last-minute EVA Air flights from Heathrow to Ko Samui
Discover last-minute EVA Air flight deals from Heathrow to Ko Samui. Data last updated 11 July 2026 and is based on user searches.

One-way EVA Air flights to Ko Samui
Search for one-way EVA Air flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.