AirHint found the following cheapest return flights from Duesseldorf (DUS) to Sofia (SOF) in July 2026 (see full year).
Return flights
| 17 Jul - 19 Jul | Air Serbia | ||
| 13 Jul - 17 Jul | Lufthansa | ||
| 20 Jul - 24 Jul | Lufthansa | ||
| 24 Jul - 28 Jul | Ryanair |
Also check the deals for one-way flights from Duesseldorf to Sofia in July.
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