Cheap flights from London to Koh Samui

View AU$883 flight on Thu, 12 Jun. 2025Opens in a new window

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air France
Wed., 3 Dec. - Thu., 25 Dec.
LHR
London
USM
Koh Samui
AU$1,489 Return, found 3 days ago
AU$1,489
Return
found 3 days ago
Select Air France flight, departing Wed., 3 Dec. from London to Koh Samui, returning Thu., 25 Dec., priced at AU$1,489 found 3 days ago
Etihad Airways
Fri., 5 Sep. - Fri., 19 Sep.
LHR
London
USM
Koh Samui
AU$1,615 Return, found 1 day ago
AU$1,615
Return
found 1 day ago
Select Etihad Airways flight, departing Fri., 5 Sep. from London to Koh Samui, returning Fri., 19 Sep., priced at AU$1,615 found 1 day ago
KLM
Sun., 11 May - Fri., 16 May
LCY
London
USM
Koh Samui
AU$1,684 Return, found 6 days ago
AU$1,684
Return
found 6 days ago
Select KLM flight, departing Sun., 11 May from London to Koh Samui, returning Fri., 16 May, priced at AU$1,684 found 6 days ago
Swiss International Air Lines
Mon., 1 Sep. - Mon., 15 Sep.
LGW
London
USM
Koh Samui
AU$1,712 Return, found 3 days ago
AU$1,712
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Mon., 1 Sep. from London to Koh Samui, returning Mon., 15 Sep., priced at AU$1,712 found 3 days ago
EVA Airways
Thu., 20 Mar. - Thu., 3 Apr.
LHR
London
USM
Koh Samui
AU$1,738 Return, found 3 days ago
AU$1,738
Return
found 3 days ago
Select EVA Airways flight, departing Thu., 20 Mar. from London to Koh Samui, returning Thu., 3 Apr., priced at AU$1,738 found 3 days ago
Qatar Airways
Mon., 1 Sep. - Mon., 15 Sep.
LGW
London
USM
Koh Samui
AU$1,799 Return, found 3 days ago
AU$1,799
Return
found 3 days ago
Select Qatar Airways flight, departing Mon., 1 Sep. from London to Koh Samui, returning Mon., 15 Sep., priced at AU$1,799 found 3 days ago
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