Cheap Flights from London (LON) to Samui Intl. Airport (USM)

View AU$859 flight on Mon, 2 Feb 2026Opens in a new window

Popular airlines from London to Samui Intl. Airport (USM)

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Cheap Flights from London (LON) to Samui Intl. Airport (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.

Lufthansa
Wed, 15 Oct - Wed, 22 Oct
LHR
London
USM
Koh Samui
AU$1,365 Return, found 4 days ago
AU$1,365
Return
found 4 days ago
Select Lufthansa flight, departing Wed, 15 Oct from London to Koh Samui, returning Wed, 22 Oct, priced at AU$1,365 found 4 days ago
Lufthansa
Tue, 14 Oct - Tue, 21 Oct
LHR
London
USM
Koh Samui
AU$1,367 Return, found 4 days ago
AU$1,367
Return
found 4 days ago
Select Lufthansa flight, departing Tue, 14 Oct from London to Koh Samui, returning Tue, 21 Oct, priced at AU$1,367 found 4 days ago
Lufthansa
Wed, 15 Oct - Wed, 22 Oct
LHR
London
USM
Koh Samui
AU$1,370 Return, found 4 days ago
AU$1,370
Return
found 4 days ago
Select Lufthansa flight, departing Wed, 15 Oct from London to Koh Samui, returning Wed, 22 Oct, priced at AU$1,370 found 4 days ago
Austrian Airlines
Fri, 12 June - Fri, 19 June
LHR
London
USM
Koh Samui
AU$1,386 Return, found 1 day ago
AU$1,386
Return
found 1 day ago
Select Austrian Airlines flight, departing Fri, 12 June from London to Koh Samui, returning Fri, 19 June, priced at AU$1,386 found 1 day ago
Swiss International Air Lines
Mon, 9 Mar - Wed, 18 Mar
LHR
London
USM
Koh Samui
AU$1,445 Return, found 5 days ago
AU$1,445
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Mon, 9 Mar from London to Koh Samui, returning Wed, 18 Mar, priced at AU$1,445 found 5 days ago
Swiss International Air Lines
Mon, 9 Mar - Wed, 18 Mar
LGW
London
USM
Koh Samui
AU$1,548 Return, found 5 days ago
AU$1,548
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Mon, 9 Mar from London to Koh Samui, returning Wed, 18 Mar, priced at AU$1,548 found 5 days ago
Air France
Sun, 1 Mar - Tue, 10 Mar
LHR
London
USM
Koh Samui
AU$1,553 Return, found 7 hours ago
AU$1,553
Return
found 7 hours ago
Select Air France flight, departing Sun, 1 Mar from London to Koh Samui, returning Tue, 10 Mar, priced at AU$1,553 found 7 hours ago
KLM
Mon, 9 Mar - Wed, 18 Mar
LCY
London
USM
Koh Samui
AU$1,563 Return, found 5 days ago
AU$1,563
Return
found 5 days ago
Select KLM flight, departing Mon, 9 Mar from London to Koh Samui, returning Wed, 18 Mar, priced at AU$1,563 found 5 days ago
KLM
Mon, 9 Mar - Wed, 18 Mar
LCY
London
USM
Koh Samui
AU$1,563 Return, found 5 days ago
AU$1,563
Return
found 5 days ago
Select KLM flight, departing Mon, 9 Mar from London to Koh Samui, returning Wed, 18 Mar, priced at AU$1,563 found 5 days ago
Qatar Airways
Tue, 14 Oct - Tue, 21 Oct
LGW
London
USM
Koh Samui
AU$1,637 Return, found 4 days ago
AU$1,637
Return
found 4 days ago
Select Qatar Airways flight, departing Tue, 14 Oct from London to Koh Samui, returning Tue, 21 Oct, priced at AU$1,637 found 4 days ago
Flight from London to Samui Intl. Airport route information
Origin airport
Heathrow
Destination airport
Samui Intl. Airport
Airlines serving
Air France, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Etihad Airways, KLM, Malaysia Airlines, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International
Return price
AU$1,365
Distance
9836 km

LON to USM Flights

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