AirHint found the following cheapest return flights from Seoul (ICN) to Bandar Seri Begawan (BWN) in August 2025 (see full year).

Return flights

21 Aug - 28 Aug	Cebu Pacific
23 Aug - 28 Aug	Cebu Pacific
26 Aug - 30 Aug	Cebu Pacific
19 Aug - 26 Aug	Philippines AirAsia Inc.
20 Aug - 23 Aug	Royal Brunei	direct
26 Aug - 30 Aug	Royal Brunei	direct
27 Aug - 30 Aug	Royal Brunei	direct
20 Aug - 27 Aug	Royal Brunei	direct
19 Aug - 26 Aug	Royal Brunei	direct
23 Aug - 27 Aug	Royal Brunei	direct
27 Aug - 02 Sep	Royal Brunei	direct
28 Aug - 02 Sep	AirAsia X
26 Aug - 02 Sep	AirAsia X
19 Aug - 02 Sep	AirAsia X
22 Aug - 02 Sep	AirAsia X
25 Aug - 02 Sep	AirAsia X
21 Aug - 02 Sep	AirAsia X
13 Aug - 02 Sep	AirAsia X
20 Aug - 02 Sep	AirAsia X
14 Aug - 02 Sep	AirAsia X

Also check the deals for one-way flights from Seoul to Bandar Seri Begawan in August.

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 return flights from Seoul to Bandar Seri Begawan in August from 230€

Return flights