AirHint found the following cheapest return flights from Gdansk (GDN) to Brussels (BRU) in September 2025 (see full year).

Return flights

17 Sep - 06 Oct	Wizz Air
24 Sep - 25 Sep	Wizz Air
29 Sep - 07 Oct	Ryanair
15 Sep - 08 Oct	Ryanair
26 Sep - 29 Sep	Ryanair
29 Sep - 30 Sep	Ryanair
19 Sep - 24 Sep	Ryanair
22 Sep - 24 Sep	Ryanair
16 Sep - 08 Oct	Ryanair
22 Sep - 30 Sep	Ryanair
08 Sep - 10 Sep	Ryanair
17 Sep - 05 Oct	Wizz Air
08 Sep - 15 Sep	Ryanair
15 Sep - 05 Oct	Ryanair
29 Sep - 03 Oct	Ryanair
19 Sep - 22 Sep	Ryanair
25 Sep - 25 Sep	Ryanair
14 Sep - 06 Oct	Ryanair
14 Sep - 04 Oct	Ryanair
14 Sep - 07 Oct	Wizz Air

Also check the deals for one-way flights from Gdansk to Brussels in September.

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 Gdansk to Brussels in September from $127

Return flights