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Home / London — Koh Samui

Cheap flights London — Koh Samui

London (LON, GB) Koh Samui (USM, TH)
from $516 9 872 km ~12h 7m 4 flights found 4 airlines cheapest on Tuesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $516 on 08.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 3 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
08 Dec 2026, Tue
easyJet U2 2531
11:05
LTN London Luton Airport
02:30
USM Koh Samui Airport
15h 25m 3 stops
Flightnetwork
$516
View this ticket
11 Dec 2026, Fri
Ryanair FR 7349
20:10
STN Stansted Airport
11:50
USM Koh Samui Airport
15h 40m 2 stops
Kiwi.com
$637
View this ticket
26 Dec 2026, Sat
Ajet VF 1988
15:30
STN Stansted Airport
09:45
USM Koh Samui Airport
18h 15m 3 stops
Lucky2Go
$752
View this ticket
Route characteristics
Distance
9 872 km
Flight time
12h 7m
Time difference
+7h
Minimum price
from $516 (08.12.2026)
Average price
$635
Maximum price
$752
Cheapest day
Tuesday
Departure airports (3)
LHR London Heathrow Airport LTN London Luton Airport STN Stansted Airport
Arrival airports (1)
USM Koh Samui Airport
Airlines (4)
U2 easyJet ZH Shenzhen Airlines FR Ryanair VF Ajet
Agencies (4)
Flightnetwork Aviakassa Kiwi.com Lucky2Go
Prices by day of week
Tuesday
$516
avg $516
Cheapest
Friday
$637
avg $637
Saturday
$752
avg $752
Airlines — cheapest prices 4
easyJet
easyJet
Low-cost 1 flights · 1 days
$516
Shenzhen Airlines
Shenzhen Airlines
1 flights · 1 days
$535
Ryanair
Ryanair
Low-cost 1 flights · 1 days
$637
Ajet
Ajet
Low-cost 1 flights · 1 days
$752
Where to buy tickets 4
Flightnetwork
1 tickets · 1 days
from $516
Aviakassa
1 tickets · 1 days
from $535
Kiwi.com
1 tickets · 1 days
from $637
Lucky2Go
1 tickets · 1 days
from $752
Airports

From — London (3)

  • LHR London Heathrow Airport
  • LTN London Luton Airport
  • STN Stansted Airport

To — Koh Samui (1)

  • USM Koh Samui Airport
Other destinations from London
Amsterdam
NL · Hub
Barcelona
ES · Hub
Dublin
IE · Hub
Nice
FR
Malaga
ES · Hub
Faro
PT
Munich
DE · Hub
Glasgow
GB
Edinburgh
GB
Ibiza
ES
Madrid
ES · Hub
Palma
ES · Hub
Frequently asked questions about the route London — Koh Samui
How long is the flight from London to Koh Samui?
Approximate flight time — 12h 7m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from London to Koh Samui?
The straight-line distance — 9 872 km.
How much do flights from London to Koh Samui cost?
The minimum price over 3 months — from $516 on 08.12.2026.
What is the average ticket price?
The average price — $635. Range: $516 — $752.
What is the time difference between London and Koh Samui?
The difference — +7h.
From which airports does London operate flights?
From London: LHR (London Heathrow Airport), LTN (London Luton Airport), STN (Stansted Airport).
To which airports in Koh Samui do flights arrive?
To Koh Samui: USM (Koh Samui Airport).
Which airlines fly this route?
This route is served by 4 airlines: easyJet, Shenzhen Airlines, Ryanair, Ajet.
Which day of the week is cheapest?
The cheapest day of the week — Tuesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route London — Koh Samui

Flights London — Koh Samui is a popular route. The straight-line distance is 9 872 km. Flight time 12h 7m. Time difference +7h.

From London (LON) flights depart from 3 airports: LHR, LTN, STN. To Koh Samui (USM) — 1 arrival airport: USM.

4 airlines operate on this route: easyJet, Shenzhen Airlines, Ryanair, Ajet.

The minimum price for the next 3 months — from $516 (08.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $635, ranging from $516 to $752. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Tuesday.

Other destinations in Thailand from London
Bangkok
TH
Phuket
TH
Chiang Mai
TH
Pattaya
TH
Trat
TH

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