AirHint found the following cheapest return flights from Sofia (SOF) to Dublin (DUB) in September 2025 (see full year).

Return flights

24 Sep - 04 Oct	Ryanair
28 Sep - 05 Oct	Ryanair	direct
16 Sep - 21 Sep	Wizz Air
21 Sep - 05 Oct	Ryanair	direct
09 Sep - 14 Sep	Wizz Air
17 Sep - 21 Sep	Ryanair
28 Sep - 04 Oct	Ryanair	direct
10 Sep - 17 Sep	Ryanair
21 Sep - 04 Oct	Ryanair	direct
23 Sep - 30 Sep	Wizz Air
21 Sep - 27 Sep	Ryanair	direct
22 Sep - 28 Sep	Ryanair
24 Sep - 05 Oct	Ryanair	direct
28 Sep - 01 Oct	Ryanair	direct
28 Sep - 11 Oct	Ryanair	direct
11 Sep - 18 Sep	Wizz Air
21 Sep - 01 Oct	Ryanair	direct
21 Sep - 11 Oct	Ryanair	direct
23 Sep - 25 Sep	Wizz Air
06 Sep - 13 Sep	Ryanair

Also check the deals for one-way flights from Sofia to Dublin 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 Sofia to Dublin in September from 107€

Return flights