Cheapest return flights from Ko Samui to Bangkok in September from $208

AirHint found the following cheapest return flights from Ko Samui (USM) to Bangkok (BKK) in September 2025 (see full year).

Return flights

21 Sep - 13 Oct Bangkok Airways direct
25 Sep - 14 Oct Bangkok Airways direct
17 Sep - 24 Sep Bangkok Airways direct
08 Sep - 11 Sep Bangkok Airways
22 Sep - 23 Sep Bangkok Airways direct
20 Sep - 24 Sep Bangkok Airways direct
19 Sep - 13 Oct Bangkok Airways
20 Sep - 13 Oct Bangkok Airways direct
23 Sep - 30 Sep Bangkok Airways
06 Sep - 17 Oct Bangkok Airways
26 Sep - 28 Sep Bangkok Airways direct
25 Sep - 28 Sep Bangkok Airways direct
08 Sep - 11 Sep Bangkok Airways direct
15 Sep - 21 Sep Bangkok Airways
24 Sep - 30 Sep Bangkok Airways direct
24 Sep - 01 Oct Bangkok Airways direct
22 Sep - 03 Oct Bangkok Airways direct
27 Sep - 01 Oct Bangkok Airways
12 Sep - 20 Oct Bangkok Airways direct
06 Sep - 17 Oct Bangkok Airways direct

Also check the deals for one-way flights from Ko Samui to Bangkok in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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