Naharlagun boasts the most developed transportation infrastructure in Arunachal Pradesh.
* **Rail:** The Naharlagun Railway Station connects the state to major Indian cities. Key trains include the Donyi Polo Express (to Guwahati) and the Arunachal AC Superfast Express (to New Delhi). * **Road:** National Highway 415 (NH-415) runs through the heart of the city, connecting it to Itanagar to the west and Banderdewa (Assam border) to the east. The highway has recently been upgraded to a four-lane road. * **Air:** The Naharlagun Helipad operates regular Pawan Hans helicopter services to Guwahati, Dibrugarh, and other remote districts of Arunachal Pradesh. The nearest major airport is Donyi Polo Airport in Hollongi, about 30 km away. * **Local Transit:** Auto-rickshaws, shared tempos (locally called 'Trekker'), and electric rickshaws are the primary modes of local public transport. Inter-city buses connect Naharlagun to various districts and neighboring states.
