AirHint found the following cheapest return flights from Busan (PUS) to Colombo (CMB) in October 2025 (see full year).

Return flights

02 Oct - 12 Oct	Air Busan
02 Oct - 03 Oct	Air Busan
03 Oct - 12 Oct	Jeju Air
12 Oct - 21 Oct	Singapore Airlines
09 Oct - 21 Oct	Singapore Airlines
11 Oct - 21 Oct	Korean Air
13 Oct - 21 Oct	Korean Air
10 Oct - 21 Oct	Korean Air
14 Oct - 21 Oct	Korean Air
27 Oct - 25 Nov	Korean Air
09 Oct - 16 Oct	Korean Air

Also check the deals for one-way flights from Busan to Colombo 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 return flights from Busan to Colombo in October from $634

Return flights