Best way to travel between Lisbon and Athens

A: Lisbon

B: Athens

Travel Modes: Price; Distance; Duration; CO2

flight: $145.0; 2974.32 km; 7h 46mins; 321.23 kgs

bus: $477.56; 7319.18 km; 95h 59mins; 219.58 kgs

train: $836.0; 4834.2 km; 123h 52mins; 256.21 kgs

drive: $850.0; 4321.74 km; 44h 52mins; 553.18 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Flight	2974.32 km	7h 46mins	107 EUR	145.0
Bus	7319.18 km	95h 59mins	352 EUR	477.56
Train	4834.2 km	123h 52mins	616 EUR	836.0
Drive	4321.74 km	44h 52mins	626 EUR	850.0

Take Bus from Lisboa Rossio to Lisbon airport: Time: 24mins Cost: 3 EUR; $ 3.6 - 4.4 USD CO2 Emission: 0.43 kgs
Take Flight from LIS to ATH: Time: 4h 15mins Cost: 103 EUR; $ 126.0 - 154.0 USD CO2 Emission: 316.12 kgs
Take Train from Στ.Αεροδρομιου to Στ.Μοναστηρακι: Time: 43mins Cost: 1 EUR; $ 0.9 - 1.1 USD CO2 Emission: 1.78 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Lisbon and Athens is to travel by air, which will cost about 107 EUR or 130.50 USD.