Cheap flights to Ko Samui – Compare and Save

— USM
4 May — 11 May1
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Find the latest flights to Ko Samui in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 4 April 2026.

Return from

£772

One-way from

£294

Popular in

December

Cheapest in

November

Average price

£924
30/5-27/6
  • 30/5-27/6
  • 4 total stops
  • 50h 25m total
  • London to Ko Samui
10/5
  • 10/5
  • 3 total stops
  • 29h 55m total
  • London to Ko Samui
Highest demand for flights based on searches. 7% potential increase in price (£79 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£38 potential savings vs. average return price).
Average for return flights in April 2026

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Cheapest flights to Ko Samui
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 4 April 2026.

Sat 30/509:15
LGW
-
USM
2 stops29h 10m
Multiple Airlines
Sat 27/615:25
USM
-
LGW
2 stops21h 15m
Multiple Airlines
Deal found 3/4£772
Tue 5/520:45
LHR
-
USM
2 stops18h 50m
Etihad Airways
Sat 16/519:00
USM
-
LHR
2 stops23h 45m
Etihad Airways
Deal found 4/4£774
Thu 16/409:15
LHR
-
USM
2 stops19h 15m
Etihad Airways
Thu 30/418:25
USM
-
LHR
2 stops26h 40m
Etihad Airways
Deal found 4/4£775
Tue 16/609:30
LHR
-
USM
2 stops17h 50m
Etihad Airways
Wed 24/619:45
USM
-
LHR
2 stops23h 00m
Etihad Airways
Deal found 3/4£776
Sat 25/420:45
LHR
-
USM
2 stops29h 40m
Multiple Airlines
Sun 10/521:00
USM
-
LHR
2 stops21h 45m
Multiple Airlines
Deal found 3/4£779
Sun 26/422:15
LHR
-
USM
2 stops27h 30m
Multiple Airlines
Wed 6/515:50
USM
-
LHR
3 stops44h 30m
Multiple Airlines
Deal found 2/4£780
Mon 6/415:30
LHR
-
USM
2 stops22h 55m
Multiple Airlines
Thu 30/409:15
USM
-
LHR
2 stops28h 20m
Multiple Airlines
Deal found 2/4£781
Fri 15/510:40
LGW
-
USM
2 stops24h 40m
Multiple Airlines
Fri 22/519:45
USM
-
LGW
2 stops41h 10m
Multiple Airlines
Deal found 1/4£782
Thu 16/421:10
LHR
-
USM
2 stops18h 25m
Multiple Airlines
Sat 25/406:00
USM
-
LHR
2 stops19h 20m
Multiple Airlines
Deal found 31/3£782
Thu 16/421:10
LHR
-
USM
2 stops18h 25m
Etihad Airways
Thu 30/406:00
USM
-
LHR
2 stops19h 20m
Etihad Airways
Deal found 31/3£783
Fri 15/518:05
LGW
-
USM
3 stops21h 30m
Multiple Airlines
Fri 22/518:25
USM
-
LGW
2 stops18h 55m
Multiple Airlines
Deal found 31/3£784
Tue 19/521:45
LHR
-
USM
2 stops17h 50m
Etihad Airways
Sat 30/506:00
USM
-
LHR
2 stops18h 45m
Etihad Airways
Deal found 3/4£784

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