Air
The nearest airport is Lilabari (North Lakhimpur) in Assam, 57 kms from Naharlagun and 67 kms from Itanagar, served by Vayudoot. Indian Airlines operates direct flight from Calcutta to Tezpur 

Rail
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. 

Road
(Distance between Itanagar and Naharlagun is only 10 kms)
Itanagar is connected by road to: GUWAHATI- 381 km (Gohpur 79 -Ballipara 110 -Mission Charali 17 -Orang 53 -Baihata Charali 90 -Guwahati 32), SHILLONG- 481 km (Guwahati 381 -Shillong 100 ), AGARTALA- 980 km (Shillong 481 -Badarpur 211 -Agartala 288), AIZAWL- 901 km (Badarpur 692 -Silchar 29 -Aizawl 180), KOHIMA- 350 km (North Lakhimpur 73 -Jorhat 69 -Dimapur 134 -Kohima 74), IMPHAL- 495 km (Kohima 350 -Imphal 145). Arunachal Pradesh State Transport Corpn. operates regular bus-services to various Places in Arunachal Pradesh and its neighbouring states.