The nearest airport from Gangotri is Jolly Grant airport in Dehradun, at a distance of 260 kilometers. This is a domestic airport and is connected to Delhi, Mumbai, Bengaluru, Lucknow and Thriuvananthapuram. If you are looking for an international airport, then the closest airport is in New Delhi. You can hire a taxi from Jolly Grant airport to reach Gangotri, cost for the taxi will be roughly Rs. 4000. Or you can opt to board a bus from Dehradun ISBT.
Closest railway station from Gangotri is in Rishikesh, at a distance of 250 km. You can hire a taxi to reach Gangotri and it will cost you somewhere around Rs 2200. There are trains connecting to Puri, Amritsar, Mumbai, New Delhi, Howrah, Varanasi, Dehradun and other towns and cities of India.
There are frequent bus services owned by the state government and private agencies, connecting to Gangotri;s neighboring towns and cities. Charges of government buses are Re 1 per kilometer, while private agencies charge Rs 3 per kilometer. There are bus services to and from Yamunotri, Mussoorie, Tehri and other places.