AirHint found the following cheapest return flights from New York (JFK) to Sofia (SOF) in May 2026 (see full year).
Return flights
| 10 May - 24 May | Air France | ||
| 15 May - 31 May | Air Serbia | ||
| 14 May - 20 May | Air Serbia | ||
| 08 May - 22 May | Lufthansa | ||
| 08 May - 18 May | Lufthansa | ||
| 23 May - 30 May | Air Serbia |
Also check the deals for one-way flights from New York to Sofia in May.
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