Cheapest return flights from Frankfurt to Sofia in September from 34€

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

Return flights

25 Sep - 27 Sep Ryanair direct
25 Sep - 30 Sep Ryanair direct
16 Sep - 23 Sep Ryanair direct
16 Sep - 27 Sep Ryanair direct
16 Sep - 30 Sep Ryanair direct
18 Sep - 23 Sep Ryanair direct
18 Sep - 27 Sep Ryanair direct
18 Sep - 30 Sep Ryanair direct
25 Sep - 07 Oct Ryanair direct
25 Sep - 02 Oct Ryanair direct
16 Sep - 02 Oct Ryanair direct
30 Sep - 07 Oct Ryanair direct
30 Sep - 02 Oct Ryanair direct
18 Sep - 07 Oct Ryanair direct
18 Sep - 02 Oct Ryanair direct
16 Sep - 25 Sep Ryanair direct
16 Sep - 16 Sep Ryanair direct
25 Sep - 14 Oct Ryanair direct
25 Sep - 16 Oct Ryanair direct
25 Sep - 04 Oct Ryanair direct

Also check the deals for one-way flights from Frankfurt to Sofia in September.

Skyscanner

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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