AirHint found the following cheapest return flights from Sofia (SOF) to Hanoi (HAN) in April 2026 (see full year).
Return flights
| 12 Apr - 25 Apr | Pegasus Airlines | ||
| 10 Apr - 19 Apr | Pegasus Airlines | ||
| 04 Apr - 14 Apr | Wizz Air | ||
| 02 Apr - 12 Apr | Air Serbia | ||
| 02 Apr - 17 Apr | Bulgaria Air |
Also check the deals for one-way flights from Sofia to Hanoi in April.
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