AirHint found the following cheapest one-way flights from Hanoi (HAN) to Sofia (SOF) in March 2026 (see full year).
One-Way flights
| 12 Mar | Hainan Airlines | ||
| 26 Mar | IndiGo | ||
| 08 Mar | IndiGo | ||
| 01 Mar | IndiGo | ||
| 06 Mar | IndiGo | ||
| 07 Mar | IndiGo |
Also check the deals for return flights from Hanoi to Sofia in March.
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