Best way to travel between Vienna and Sofia

A: Vienna

B: Sofia

Travel Modes: Price; Distance; Duration; CO2

bus: $45.0; 1082.53 km; 20h 46mins; 32.48 kgs

train: $46.0; 1073.28 km; 18h 32mins; 56.88 kgs

flight: $166.0; 847.62 km; 4h 8mins; 91.54 kgs

drive: $170.0; 1017.07 km; 11h 11mins; 130.18 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	1082.53 km	20h 46mins	65 BGN	45.0
Train	1073.28 km	18h 32mins	66 BGN	46.0
Flight	847.62 km	4h 8mins	239 BGN	166.0
Drive	1017.07 km	11h 11mins	245 BGN	170.0

Take Bus from Vienna to Požarevac: Time: 11h 51mins Cost: 33 BGN; $ 20.7 - 25.3 USD CO2 Emission: 21.42 kgs
Take Bus from Požarevac to Niš: Time: 3h 47mins Cost: 10 BGN; $ 6.3 - 7.7 USD CO2 Emission: 5.97 kgs
Take Bus from Niš to Sofia: Time: 3h 5mins Cost: 22 BGN; $ 13.5 - 16.5 USD CO2 Emission: 5.1 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Vienna and Sofia is to travel by bus, which will cost about 65 BGN or 40.50 USD.