The cheapest flight to Nice you can get by boooking 4 days before departure.
The most popular airlines on the route Sofia - Nice: Lufthansa (LH), Alitalia (AZ), Austrian (OS).
The cheapest flights you can book on the route Sofia Airport (SOF) - Cote d'Azur (NCE).
There is no direct flight on the route from Sofia to Nice
Il volo con scalo più breve dura 4h 20min.