Cheap flights from Kathmandu to Koh Samui

View AU$618 flight on Tue, 9 Sep. 2025Opens in a new window

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Cheap Flights from Kathmandu (KTM) 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.

Thai Airways International
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$1,690 Return, found 4 days ago
AU$1,690
Return
found 4 days ago
Select Thai Airways International flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$1,690 found 4 days ago
China Southern Airlines
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$3,200 Return, found 4 days ago
AU$3,200
Return
found 4 days ago
Select China Southern Airlines flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$3,200 found 4 days ago
Malaysia Airlines
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$3,294 Return, found 4 days ago
AU$3,294
Return
found 4 days ago
Select Malaysia Airlines flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$3,294 found 4 days ago
Malaysia Airlines
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$3,314 Return, found 4 days ago
AU$3,314
Return
found 4 days ago
Select Malaysia Airlines flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$3,314 found 4 days ago
China Southern Airlines
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$3,328 Return, found 4 days ago
AU$3,328
Return
found 4 days ago
Select China Southern Airlines flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$3,328 found 4 days ago
Cathay Pacific
Sun., 13 Apr. - Thu., 1 May
KTM
Kathmandu
USM
Koh Samui
AU$4,880 Return, found 4 days ago
AU$4,880
Return
found 4 days ago
Select Cathay Pacific flight, departing Sun., 13 Apr. from Kathmandu to Koh Samui, returning Thu., 1 May, priced at AU$4,880 found 4 days ago
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