If the offers provided by buses do not suit your needs, trains and carpooling could represent a good alternative for this distance.
When the journey is so long, the bus takes much longer than other transportation. You can have a look at flights to Sofia: by booking in advance you can find very cheap tickets!
What time do the busses to Sofia leave?
The first bus to Sofia leaves at 07:12, while the last one is scheduled at 21:12. The journey takes on average 37 hours and 46 minutes, but the fastest connections take only 35 hours and 10 minutes.
By bus from Paris to Sofia: which companies offer the service?
Virail counts among its partners also FlixBus, with buses from Paris to Sofia.
Flixbus is undoubtedly one of the youngest and most famous bus companies in whole Europe. With more than 40 millions passengers only in 2017, Flixbus offers national and international bus connections, also with night buses.