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USM - LON

Find cheap flights from Koh Samui to London from £387

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Koh Samui to London departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 4/6
Tue 11/6

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Koh Samui to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Koh Samui to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,369,418 times on KAYAK, and here's why:

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Cheap flight deals from Koh Samui to London (USM-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Koh Samui to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
15:25 - 06:40USM-LGW
21h 15m2 stops
09:00 - 13:55LGW-USM
22h 55m2 stops
£845Qatar Airways
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Sun, 26 May - Wed, 29 May
11:25 - 06:40USM-LGW
25h 15m2 stops
09:00 - 14:40LGW-USM
23h 40m2 stops
£846Qatar Airways
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Sun, 26 May - Wed, 29 May
17:55 - 06:50USM-LHR
18h 55m2 stops
15:05 - 18:00LHR-USM
20h 55m2 stops
£873Qatar Airways
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Sun, 26 May - Wed, 29 May
21:30 - 19:25USM-LHR
27h 55m1 stop
21:35 - 18:30LHR-USM
14h 55m1 stop
£948EVA Air
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Sun, 26 May - Wed, 29 May
13:30 - 06:35USM-LHR
23h 05m1 stop
20:45 - 21:15LHR-USM
18h 30m1 stop
£971Qantas Airways
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Wed, 21 Aug - Wed, 2 Oct
19:00 - 18:00USM-LHR
29h 00m2 stops
10:50 - 10:30LHR-USM
17h 40m2 stops
£1,025Qatar Airways
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Wed, 21 Aug - Wed, 2 Oct
13:30 - 07:20USM-LGW
47h 50m2 stops
14:30 - 18:20LGW-USM
21h 50m2 stops
£1,053
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Wed, 21 Aug - Wed, 2 Oct
08:45 - 20:15USM-LCY
17h 30m2 stops
08:40 - 14:45LCY-USM
24h 05m2 stops
£1,168KLM
Find Deal
Sun, 26 May - Wed, 29 May
09:15 - 20:15USM-LCY
17h 00m2 stops
07:45 - 14:45LCY-USM
25h 00m2 stops
£1,170KLM
Find Deal
Sun, 26 May - Wed, 29 May
10:55 - 15:15USM-LHR
34h 20m1 stop
18:20 - 21:35LHR-USM
21h 15m2 stops
£1,495Cathay Pacific
Find Deal
Wed, 21 Aug - Wed, 2 Oct

Flights from Koh Samui to London - Travel Insights & Trends

Get data-powered insights and trends into flights from Koh Samui to London to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Koh Samui to London?

The average price of all flights from Koh Samui to London clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Koh Samui to London, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from London, Monday is the cheapest day to fly and Saturday is the most expensive.

Which airlines provide the cheapest flights from Koh Samui to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Etihad Airways (£387) and KLM (£646). The cheapest round-trip tickets were found on Qatar Airways (£845) and EVA Air (£948).

Good to know - Cheap tickets from Koh Samui to London

Low season

April

High season

October

Cheapest flight

£387
Best time to beat the crowds (44% less expensive on average)
Most popular time to fly and prices are also 12% lower on average.
Flight from Koh Samui to London Heathrow Airport

When to book flights from Koh Samui to London

Are your dates flexible? Find out the best times to travel from Koh Samui to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Koh Samui to London

  • What is the cheapest flight from Koh Samui to London?

    In the last 3 days, the lowest price for a flight from Koh Samui to London was £485 for a one-way ticket and £1,060 for a return.

  • Which airports will I be using when flying from Koh Samui to London?

    On your way to London, you’ll fly out from Ko Samui. You’ll be landing in one of London’s 2 airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from Koh Samui to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Koh Samui to London?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Koh Samui and London, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Koh Samui to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Koh Samui to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Koh Samui to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Koh Samui is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Koh Samui to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Koh Samui with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Koh Samui to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Koh Samui up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Koh Samui to London

Cheapest flights to London from Koh Samui found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Koh Samui to London found on KAYAK in the last 72 hours.
10/6Mon
2 stopsEtihad Airways
17h 45mUSM-LHR
£387
10/6Mon
2 stops
27h 35mUSM-LGW
£423
9/5Thu
3 stops
53h 10mUSM-LGW
£436
10/6Mon
3 stops
21h 55mUSM-LGW
£450
9/5Thu
2 stopsEtihad Airways
23h 50mUSM-LHR
£452
10/6Mon
1 stop
15h 20mUSM-LHR
£456
9/5Thu
2 stops
25h 25mUSM-LGW
£459
10/6Mon
3 stops
28h 35mUSM-LCY
£468
9/5Thu
1 stop
16h 10mUSM-LHR
£504
10/6Mon
2 stopsKLM
17h 30mUSM-LCY
£646

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Last minute flights from Koh Samui to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Koh Samui to London that are departing in the next 10 days.
10/5Fri
multi-stopEtihad Airways
29h 50mUSM-LHR
15/5Wed
multi-stopEtihad Airways
28h 20mLHR-USM
£814
9/5Thu
multi-stop
34h 40mUSM-LHR
14/5Tue
multi-stop
27h 15mLHR-USM
£822
9/5Thu
multi-stop
31h 55mUSM-LHR
14/5Tue
multi-stop
27h 15mLHR-USM
£824
9/5Thu
multi-stop
19h 10mUSM-LHR
15/5Wed
multi-stop
28h 30mLHR-USM
£849
10/5Fri
multi-stop
29h 50mUSM-LHR
15/5Wed
multi-stop
28h 55mLHR-USM
£865
9/5Thu
multi-stop
39h 20mUSM-LHR
14/5Tue
multi-stop
26h 20mLHR-USM
£866
9/5Thu
multi-stop
39h 20mUSM-LHR
14/5Tue
multi-stop
29h 50mLHR-USM
£868
9/5Thu
multi-stopEVA Air
16h 40mUSM-LHR
14/5Tue
multi-stopEVA Air
14h 55mLHR-USM
£914
9/5Thu
multi-stopEVA Air
16h 40mUSM-LHR
15/5Wed
multi-stopEVA Air
16h 55mLHR-USM
£916
9/5Thu
multi-stopQatar Airways
19h 15mUSM-LGW
14/5Tue
multi-stopQatar Airways
19h 30mLGW-USM
£1,113

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Koh Samui - London Flights

Departure:

Koh Samui (USM)Thailand

Return flight deals:

London - Koh Samui

Cabin classes: