AirHint found the following cheapest one-way flights from Ko Samui (USM) to Phuket (HKT) in October 2025 (see full year).

One-Way flights

22 Oct	Bangkok Airways	direct
20 Oct	Bangkok Airways	direct
24 Oct	Bangkok Airways	direct
30 Oct	Bangkok Airways	direct
16 Oct	Bangkok Airways	direct
17 Oct	Bangkok Airways	direct
31 Oct	Bangkok Airways	direct
18 Oct	Bangkok Airways	direct
29 Oct	Bangkok Airways	direct
23 Oct	Bangkok Airways	direct

Also check the deals for return flights from Ko Samui to Phuket in October.

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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Cheapest one-way flights from Ko Samui to Phuket in October from $68

One-Way flights