AirHint found the following cheapest return flights from Busan (PUS) to Singapore (SIN) in May 2026 (see full year).

Return flights

04 May - 06 May	Vietnam Airlines
09 May - 13 May	Vietnam Airlines
08 May - 11 May	Vietnam Airlines
06 May - 09 May	Vietnam Airlines
14 May - 17 May	Vietnam Airlines
06 May - 13 May	Vietnam Airlines
23 May - 25 May	Vietnam Airlines
24 May - 30 May	Vietnam Airlines
16 May - 20 May	Vietnam Airlines
17 May - 21 May	Vietnam Airlines
29 May - 01 Jun	Vietnam Airlines
29 May - 03 Jun	Air China
29 May - 01 Jun	Singapore Airlines	direct

Also check the deals for one-way flights from Busan to Singapore in May.

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 Singapore in May from 191€

Return flights