The distance between Dehradun and Chennai is approximately 2,500 km. The most efficient way to travel is by flight, which takes about 4 hours. Train travel is possible but takes over 45 hours, involving multiple connections. Chennai is a major city with excellent connectivity to the rest of India.
Total Distance: 2,500 km by road, 2,000 km air distance.
Train travel is very long; only recommended if you enjoy rail journeys.
Book early to avoid high last-minute prices.
October to March for pleasant weather.