Cheapest return flights from Frankfurt to Sofia in May from 136€

AirHint found the following cheapest return flights from Frankfurt (FRA) to Sofia (SOF) in May 2026 (see full year).

Return flights

05 May - 10 May Lufthansa direct
28 May - 31 May Lufthansa direct
06 May - 10 May Air Serbia
13 May - 16 May Air Serbia
11 May - 14 May Air Serbia
13 May - 27 May Air Serbia
05 May - 08 May Air Serbia
22 May - 25 May Air Serbia
14 May - 17 May Air Serbia
08 May - 12 May Air Serbia
31 May - 04 Jun Lufthansa

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

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