Question 1

What’s the top stopover airport for flights from Ko Samui to London Heathrow Airport?

Accepted Answer

Bangkok (BKK) – chosen by Cheapflights users on 90% of one-stop itineraries from Ko Samui to London Heathrow Airport on Cheapflights.

Question 2

Which airport typically offers the quickest stopover for flights from Ko Samui to London Heathrow Airport?

Accepted Answer

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 49m.

Question 3

What’s the fastest stopover option from Ko Samui to London Heathrow Airport?

Accepted Answer

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 16h 29m.

Question 4

What’s the cheapest stopover airport for flights from Ko Samui to London Heathrow Airport?

Accepted Answer

Singapore (SIN) is the most affordable one-stop option, with an average return flight price of £831.

Question 5

How long is the flight from Ko Samui to London Heathrow Airport?

Accepted Answer

A quick flight from Ko Samui to London Heathrow Airport can take about 44h 25m. Qatar Airways provides one of the quickest options available for as low as £909. The distance from Ko Samui to London Heathrow Airport is about 6144 mi.

Question 6

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Ko Samui to London Heathrow Airport (average of £112). Flying from Ko Samui to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Question 7

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

Accepted Answer

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

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 10

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

Accepted Answer

Thursday is generally a great day to depart. Flying on this day could help you save up to 69%.

Question 11

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Ko Samui in October are about £931 on average during October, but can be found for as low as £404.

Question 12

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

Accepted Answer

It’s typically best to fly out from Ko Samui to London Heathrow Airport in the afternoon. Doing so could potentially save you 17% on the flight price compared to flying at midday, which is usually more expensive.

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

How does Cheapflights help users find flights from Ko Samui to Heathrow?

Accepted Answer

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

Question 18

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

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Ko Samui to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

Yes, Cheapflights offers price alerts on Ko Samui to Heathrow 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.

Round-trip from	£734
One-way from	£281
Popular in	January
Cheapest in	October
Average price	£943

Cheap flights from Ko Samui to London Heathrow Airport from £281

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ko Samui to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ko Samui to Heathrow

Cheapest flights from Ko Samui to HeathrowExplore the most affordable flight options available from Ko Samui to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.

Explore the most affordable flight options available from Ko Samui to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ko Samui to London Heathrow Airport that are best for you.

Best time to book a flight from Ko Samui to Heathrow

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

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to London Heathrow Airport

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

What’s the top stopover airport for flights from Ko Samui to London Heathrow Airport?

What’s the fastest stopover option from Ko Samui to London Heathrow Airport?

What’s the fastest stopover option from Ko Samui to London Heathrow Airport?

Which airport typically offers the quickest stopover for flights from Ko Samui to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Heathrow. 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 from for flights from Ko Samui to London Heathrow?

How long is the flight from Ko Samui to London Heathrow Airport?

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

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

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

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

Travelling to a place near London Heathrow Airport?

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 Ko Samui to Heathrow

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

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 Ko Samui to Heathrow?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ko Samui to Heathrow
Explore the most affordable flight options available from Ko Samui to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.