Best way to travel between Bologna and Porto

A: Bologna

B: Porto

Travel Modes: Price; Distance; Duration; CO2

train: $209.0; 2351.28 km; 34h 6mins; 124.62 kgs

bus: $253.7; 2565.68 km; 41h 39mins; 76.97 kgs

flight: $275.0; 1732.46 km; 5h 46mins; 187.11 kgs

drive: $460.0; 2199.05 km; 22h 24mins; 281.48 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Train	2351.28 km	34h 6mins	154 EUR	209.0
Bus	2565.68 km	41h 39mins	187 EUR	253.7
Flight	1732.46 km	5h 46mins	203 EUR	275.0
Drive	2199.05 km	22h 24mins	339 EUR	460.0

Take Train from Bologna Centrale to Milano Centrale: Time: 1h 3mins Cost: 26 EUR; $ 31.5 - 38.5 USD CO2 Emission: 11.37 kgs
Take Train from Milano Centrale to Sion: Time: 2h 22mins Cost: 33 EUR; $ 40.5 - 49.5 USD CO2 Emission: 11.31 kgs
Take Bus from Sion to Porto: Time: 28h 40mins Cost: 96 EUR; $ 117.0 - 143.0 USD CO2 Emission: 57.71 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Bologna and Porto is to travel by train, which will cost about 154 EUR or 188.10 USD.