AirHint found the following cheapest return flights from Belfast (BFS) to Gdansk (GDN) in September 2026 (see full year).
Return flights
| 17 Sep - 21 Sep | Ryanair | direct | |
| 21 Sep - 24 Sep | Ryanair | direct | |
| 17 Sep - 24 Sep | Ryanair | direct | |
| 19 Sep - 22 Sep | Ryanair | ||
| 18 Sep - 22 Sep | British Airways |
Also check the deals for one-way flights from Belfast to Gdansk in September.
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