AirHint found the following cheapest return flights from Philadelphia (PHL) to Vienna (VIE) in April 2026 (see full year).
Return flights
| 13 Apr - 22 Apr | Austrian Airlines | ||
| 21 Apr - 29 Apr | Lufthansa | ||
| 16 Apr - 01 May | Lufthansa | ||
| 13 Apr - 20 Apr | British Airways | ||
| 04 Apr - 13 Apr | British Airways |
Also check the deals for one-way flights from Philadelphia to Vienna in April.
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