Best way to travel between Madrid and Helsinki

A: Madrid

B: Helsinki

Travel Modes: Price; Distance; Duration; CO2

flight: $181.0; 3010.81 km; 7h 16mins; 325.17 kgs

bus: $294.0; 4458.3 km; 71h 7mins; 133.75 kgs

train: $516.0; 4418.96 km; 56h 57mins; 234.2 kgs

drive: $850.0; 4333.91 km; 50h 22mins; 554.74 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Flight	3010.81 km	7h 16mins	133 EUR	181.0
Bus	4458.3 km	71h 7mins	217 EUR	294.0
Train	4418.96 km	56h 57mins	380 EUR	516.0
Drive	4333.91 km	50h 22mins	626 EUR	850.0

Take Train from Recoletos to Aeropuerto T4: Time: 23mins Cost: 2 EUR; $ 2.7 - 3.3 USD CO2 Emission: 0.78 kgs
Take Flight from MAD to HEL: Time: 4h 18mins Cost: 125 EUR; $ 153.0 - 187.0 USD CO2 Emission: 321.46 kgs
Take Bus from Lentoasema T2 to Rautatientori: Time: 32mins Cost: 6 EUR; $ 7.2 - 8.8 USD CO2 Emission: 0.59 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Madrid and Helsinki is to travel by air, which will cost about 133 EUR or 162.90 USD.