Best way to travel between Istanbul, Turkey and Tehran Province, Iran

A: Istanbul, Turkey

B: Tehran Province, Iran

Travel Modes: Price; Distance; Duration; CO2

bus: $66.0; 2565.73 km; 37h 45mins; 76.97 kgs

flight: $114.0; 2139.31 km; 7h 21mins; 231.05 kgs

flight: $166.0; 2202.9 km; 5h 20mins; 237.91 kgs

flight: $204.0; 2155.79 km; 6h 1mins; 232.83 kgs

drive: $380.0; 2473.5 km; 30h 41mins; 316.61 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	2565.73 km	37h 45mins	1,637,018 IRR	66.0
Flight	2139.31 km	7h 21mins	2,827,576 IRR	114.0
Flight	2202.9 km	5h 20mins	4,117,348 IRR	166.0
Flight	2155.79 km	6h 1mins	5,059,873 IRR	204.0
Drive	2473.5 km	30h 41mins	9,425,254 IRR	380.0

Take Bus from Istanbul to Tehran Beyhaghi Terminal: Time: 37h 5mins Cost: 1,240,165 IRR; $ 45.0 - 55.0 USD CO2 Emission: 75.73 kgs
Take Car from Tehran Beyhaghi Terminal to Shahrīār: Time: 40mins Cost: 396,853 IRR; $ 14.4 - 17.6 USD CO2 Emission: 5.31 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Istanbul, Turkey and Tehran Province, Iran is to travel by bus, which will cost about 1,637,018 IRR or 59.40 USD.