Question 1

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

Accepted Answer

Our cheapest airline available from Ko Samui to London Heathrow Airport is SWISS. Our recent data shows that you can find tickets from as low as £709 on this airline. Additional options worth looking into are Lufthansa and Singapore Airlines, starting at £756 and £890 round-trip. These flights start at 26% lower than the current average price 3 months from now.

Question 2

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

Accepted Answer

£411 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on Thai Airways and Etihad Airways, with prices starting from £444 and £496, respectively.

Question 3

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 4

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 5

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 6

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 7

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 8

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 £927 on average during October, but can be found for as low as £400.

Question 9

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 10

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 11

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 12

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 13

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 14

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 15

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 16

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 17

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	£610
One-way from	£411
Popular in	January
Cheapest in	October
Average price	£902

Cheap flights from Ko Samui to London Heathrow Airport from £411

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.

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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 11 heinäkuu 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 11 heinäkuu 2025.

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

Find hourly flight availability from Ko Samui to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 heinäkuu 2025.

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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?

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

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

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?

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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?

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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 11 heinäkuu 2025.