AirHint found the following cheapest return flights from Gerona (GRO) to Ostrava (OSR) in September 2025 (see full year).

Return flights

28 Sep - 08 Oct	Ryanair	direct
28 Sep - 01 Oct	Ryanair	direct
28 Sep - 15 Oct	Ryanair	direct
24 Sep - 28 Sep	Ryanair	direct
24 Sep - 08 Oct	Ryanair	direct
24 Sep - 01 Oct	Ryanair	direct
28 Sep - 05 Oct	Ryanair	direct
24 Sep - 05 Oct	Ryanair	direct
28 Sep - 12 Oct	Ryanair	direct
24 Sep - 12 Oct	Ryanair	direct

Also check the deals for one-way flights from Gerona to Ostrava 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 Gerona to Ostrava in September from 65€

Return flights