Best way to travel between

Tehran
Cologne
Travel Modes
Price
Distance
Duration
CO2
bus
$235.0
5437.62 km
93h 25mins
163.13 kgs
 
train
$296.0
5235.36 km
79h 19mins
277.47 kgs
 
flight
$374.0
4131.33 km
10h 17mins
446.18 kgs
 
drive
$950.0
5130.43 km
61h 13mins
656.7 kgs
 
Tranport Distance Time(hrs) Cost(local) Cost(usd)
Bus 5437.62 km 93h 25mins 173 EUR 235.0
Train 5235.36 km 79h 19mins 218 EUR 296.0
Flight 4131.33 km 10h 17mins 275 EUR 374.0
Drive 5130.43 km 61h 13mins 700 EUR 950.0
Take Bus from Tehran Beyhaghi Terminal to Istanbul
Time: 36h 43mins Cost: 37 EUR; $ 45.0 - 55.0 USD CO2 Emission: 78.59 kgs
Take Bus from Istanbul to Sarajevo
Time: 27h 2mins Cost: 66 EUR; $ 81.0 - 99.0 USD CO2 Emission: 34.7 kgs
Take Bus from Sarajevo to Cologne Hbf
Time: 27h 38mins Cost: 70 EUR; $ 85.5 - 104.5 USD CO2 Emission: 49.84 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Tehran and Cologne is to travel by bus, which will cost about 173 EUR or 211.50 USD.