AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Belgrade (BEG) in April 2026 (see full year).
One-Way flights
| 27 Apr | Aer Lingus | ||
| 28 Apr | Aer Lingus | ||
| 22 Apr | Aer Lingus | ||
| 26 Apr | Aer Lingus | ||
| 29 Apr | Aer Lingus | ||
| 25 Apr | Aer Lingus | ||
| 23 Apr | Aer Lingus | ||
| 30 Apr | Delta |
Also check the deals for return flights from Philadelphia to Belgrade in April.
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