Best way to travel between

Cologne
Porto
Travel Modes
Price
Distance
Duration
CO2
train
$138.1
2448.31 km
35h 37mins
129.76 kgs
 
bus
$169.0
2502.9 km
36h 47mins
75.09 kgs
 
drive
$410.0
2146.56 km
21h 56mins
274.76 kgs
 
flight
$533.0
1810.93 km
6h 34mins
195.58 kgs
 
Tranport Distance Time(hrs) Cost(local) Cost(usd)
Train 2448.31 km 35h 37mins 102 EUR 138.1
Bus 2502.9 km 36h 47mins 124 EUR 169.0
Drive 2146.56 km 21h 56mins 302 EUR 410.0
Flight 1810.93 km 6h 34mins 393 EUR 533.0
Take Train from Köln Hbf to Trier Hbf
Time: 3h 5mins Cost: 33 EUR; $ 40.5 - 49.5 USD CO2 Emission: 9.27 kgs
Take Train from Trier Hbf to Luxembourg
Time: 56mins Cost: 4 EUR; $ 4.5 - 5.5 USD CO2 Emission: 2.78 kgs
Take Bus from Luxembourg to Porto - Hospital São João
Time: 29h 43mins Cost: 63 EUR; $ 77.5 - 94.7 USD CO2 Emission: 66.51 kgs
Take Train from Hospital de São João to Aliados
Time: 14mins Cost: 1 EUR; $ 1.8 - 2.2 USD CO2 Emission: 0.24 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Cologne and Porto is to travel by train, which will cost about 102 EUR or 124.20 USD.