The nearest airport is Lilabari (North Lakhimpur) in Assam , 57-km from Naharlagun and 67-km from Itanagar, served by airline services that operate direct flights from Kolkata (Calcutta ) to Tezpur (216-km from Itanagar) on Wednesday, Friday and Sunday.
The nearest railway station is Harmuty (near Banderdewa check gate) only 23-km from Naharlagun & 33-km from Itanagar. However nearest convenient railhead is North Lakhimpur in Assam , 50-km from Naharlagun & 60-km from Itanagar. Stations are served by No.9 and No.10 Arunachal Fast Passenger Trains and other local services.
Arunachal Pradesh State Transport Corporation operates regular bus-services to various places in Arunachal Pradesh and its neighbouring states. Direct bus-services are there from North Lakhimpur to Itanagar via Naharlagun. Buses run frequently between Naharlagun & Itanagar between 6.00 am - 7.00 pm. Private coach operators viz. also operate their services in different routes touching Itanagar.
A visit to the state can be divided into two distinct parts: the Bomdila-Sela-Tawang region and the other regions. To visit the Bomdila side one need not go to Itanagar. It is better to make Tezpur the starting point and take a direct bus, which takes 7 hrs, going via Bhalukpong/Tipi and Tenga Valley/Rupa. Tawang has bus services from Bomdila and the journey takes about 10 hrs.
Local transport: A very few number tourist taxi and auto are available for moving around purposes. Tourist deluxe buses for group tourist can be hired from the Director, Department of Tourism, Government of Arunachal Pradesh, Naharlagun. A few other transport agencies in town rent out tourist cars and coaches. Cycle rickshaws are the most common local transport in Naharlagun.
Important City Distances From Itanagar:
Guwahati : 381-km
Shillong : 481-km
Kolkata : 1, 539-km