Dehradun → Siliguri
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Uttarakhand to Sikkim · 1,081 km · Compare trains, buses & driving options
The straight-line distance from Dehradun to Gangtok is approximately 1,081 km (672 miles). By road, the distance increases to about 1,557 km due to terrain, highways, and road networks connecting Uttarakhand to Sikkim.
Gangtok does not have its own commercial airport. The nearest airport is Bagdogra (IXB). Fly to the nearest airport and continue by road or rail.
Search Flights to Nearest AirportIndian Railways connects Dehradun and Gangtok with multiple daily services. The journey takes approximately 23 hrs 57 min. Rajdhani and Shatabdi express trains are faster, while mail and passenger trains make more stops but cost less.
Book in advance through IRCTC, especially during festivals and holidays when seats fill up quickly.
Check Trains on IRCTCThe drive from Dehradun to Gangtok is a long one — approximately 1,557 km taking around 19 hrs 12 min. Plan at least one overnight halt. Fatigue driving on Indian highways is dangerous.
For official travel information, regulations, and booking services:
IRCTC — Indian Railway Catering and Tourism Corporation — Book train tickets online
Airports Authority of India — Airport information and flight status
DGCA — Directorate General of Civil Aviation — Indian aviation regulator
Incredible India — Official tourism portal of India
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