Best way to travel between Vienna and Athens

A: Vienna

B: Athens

Travel Modes: Price; Distance; Duration; CO2

bus: $82.81; 1899.04 km; 30h 21mins; 56.97 kgs

train: $144.0; 1865.47 km; 26h 22mins; 98.87 kgs

flight: $185.0; 1399.65 km; 5h 23mins; 151.16 kgs

drive: $350.0; 1733.16 km; 18h 40mins; 221.84 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	1899.04 km	30h 21mins	61 EUR	82.81
Train	1865.47 km	26h 22mins	106 EUR	144.0
Flight	1399.65 km	5h 23mins	136 EUR	185.0
Drive	1733.16 km	18h 40mins	258 EUR	350.0

Take Train from Stephansplatz to Hauptbahnhof: Time: 4mins Cost: 2 EUR; $ 2.7 - 3.3 USD CO2 Emission: 0.14 kgs
Take Bus from Vienna to Budapest: Time: 3h 38mins Cost: 7 EUR; $ 8.8 - 10.8 USD CO2 Emission: 7.65 kgs
Take Bus from Budapest to Athens: Time: 24h 34mins Cost: 52 EUR; $ 63.0 - 77.0 USD CO2 Emission: 49.25 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Vienna and Athens is to travel by bus, which will cost about 61 EUR or 74.70 USD.