Flights to Koh Samui Islands from London - ￥89,490

View ￥89,490 flight on Sat, Oct 4, 2025Opens in a new window

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Cheap Flights from London to Koh Samui Islands (LON-USM)

Prices were available within the past 7 days and start at ￥89,490 for one-way flights and ￥131,820 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Sat, Oct 4 - Mon, Oct 13
LHR
London
USM
Koh Samui
￥131,820 Roundtrip, found 6 days ago
￥131,820
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥131,820 found 6 days ago
Swiss International Air Lines
Sat, Oct 4 - Mon, Oct 13
LHR
London
USM
Koh Samui
￥134,240 Roundtrip, found 6 days ago
￥134,240
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥134,240 found 6 days ago
Lufthansa
Sat, Oct 4 - Mon, Oct 13
LHR
London
USM
Koh Samui
￥137,070 Roundtrip, found 6 days ago
￥137,070
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥137,070 found 6 days ago
Austrian Airlines
Sat, Oct 4 - Mon, Oct 13
LHR
London
USM
Koh Samui
￥157,400 Roundtrip, found 6 days ago
￥157,400
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥157,400 found 6 days ago
Singapore Airlines
Sat, Oct 4 - Mon, Oct 13
LHR
London
USM
Koh Samui
￥169,240 Roundtrip, found 6 days ago
￥169,240
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥169,240 found 6 days ago
Qatar Airways
Sat, Oct 4 - Mon, Oct 13
LGW
London
USM
Koh Samui
￥169,570 Roundtrip, found 6 days ago
￥169,570
Roundtrip
found 6 days ago
Select Qatar Airways flight, departing Sat, Oct 4 from London to Koh Samui, returning Mon, Oct 13, priced at ￥169,570 found 6 days ago
*Available to Expedia members.