Best way to travel between Amsterdam, Netherlands and Porto

A: Amsterdam, Netherlands

B: Porto

Travel Modes: Price; Distance; Duration; CO2

flight: $186.0; 1856.4 km; 8h 9mins; 200.49 kgs

train: $219.0; 2302.8 km; 32h 13mins; 122.05 kgs

bus: $266.0; 2368.8 km; 33h 1mins; 71.06 kgs

drive: $450.0; 2182.95 km; 22h 21mins; 279.42 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Flight	1856.4 km	8h 9mins	137 EUR	186.0
Train	2302.8 km	32h 13mins	161 EUR	219.0
Bus	2368.8 km	33h 1mins	196 EUR	266.0
Drive	2182.95 km	22h 21mins	331 EUR	450.0

Take Train from Amsterdam Centraal to Nijmegen: Time: 1h 28mins Cost: 10 EUR; $ 12.6 - 15.4 USD CO2 Emission: 6.28 kgs
Take Bus from Nijmegen to Weeze Airport: Time: 47mins Cost: 15 EUR; $ 18.0 - 22.0 USD CO2 Emission: 1.48 kgs
Take Flight from NRN to OPO: Time: 2h 46mins Cost: 110 EUR; $ 135.0 - 165.0 USD CO2 Emission: 181.08 kgs
Take Train from Aeroporto to Trindade: Time: 28mins Cost: 1 EUR; $ 1.8 - 2.2 USD CO2 Emission: 0.66 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Amsterdam, Netherlands and Porto is to travel by air, which will cost about 137 EUR or 167.40 USD.