AirHint found the following cheapest return flights from Busan (PUS) to Surabaya (SUB) in December 2025 (see full year).
Return flights
| 09 Dec - 20 Dec | Eastar Jet | ||
| 19 Dec - 22 Dec | Jeju Air | ||
| 11 Dec - 17 Dec | Jeju Air | ||
| 20 Dec - 10 Jan | Korean Air | ||
| 13 Dec - 15 Dec | Jeju Air | ||
| 10 Dec - 17 Dec | Jeju Air | ||
| 14 Dec - 20 Dec | Korean Air |
Also check the deals for one-way flights from Busan to Surabaya in December.
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