AirHint found the following cheapest one-way flights from Seoul (ICN) to Busan (PUS) in March 2026 (see full year).
One-Way flights
| 03 Mar | Eastar Jet | ||
| 25 Mar | T'way Air | ||
| 12 Mar | Korean Air | ||
| 05 Mar | Jeju Air | ||
| 24 Mar | Air Busan | ||
| 26 Mar | Jeju Air | ||
| 19 Mar | Eastar Jet | ||
| 27 Mar | Eastar Jet | ||
| 30 Mar | China Eastern | ||
| 06 Mar | Air Busan |
Also check the deals for return flights from Seoul to Busan in March.
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