Cheap flights from Ko Samui to London Heathrow Airport from ฿14,805
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 22/9. 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
Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Heathrow (LHR). 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 29 August 2025.
Round-trip from | ฿34,717 |
---|---|
One-way from | ฿14,805 |
Popular in | January |
Cheapest in | October |
Average price | ฿41,085 |
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 29 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 29 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.
Fly from
Fly to
Route
Depart
Return
Price
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Sun 12/10
09:15-21:45
2 stops18h 30m
London Heathrow
Sun 19/10
10:25-17:45
2 stops25h 20m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Mon 22/9
12:30-16:40
3 stops34h 10m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Thu 15/1
08:55-12:10
2 stops34h 15m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Mon 22/9
08:45-06:55
2 stops28h 10m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Wed 8/10
17:40-19:55
3 stops32h 15m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Sun 14/9
08:45-18:45
3 stops40h 00m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Tue 13/1
13:25-19:50
2 stops37h 25m
Ko SamuiLondon
USM - LHR
USMLHR
Ko Samui
Mon 22/9
08:00-07:15
1 stop29h 15m
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.
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.
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Alternative routes for Ko Samui to Heathrow
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How does Cheapflights help users find flights from Ko Samui to Heathrow?
Cheapflights makes it easy to find Ko Samui to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Heathrow?
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.
Can Cheapflights find flights from Ko Samui to Heathrow with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Ko Samui to Heathrow flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Ko Samui to Heathrow become cheaper?
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.