AIR
Port Blair is connected to Calcutta and Chennai by Alliance Air.

SEA
Regular passenger ship services viz. M.V. Akbar and M.V. Nicobar and M.V. Nancowry are plying between Port Blair and Chennai (1190 kms), Calcutta (1255 kms), Vizag (1200 kms).  There are 2 sailings  in a month each from Calcutta and Madras to Port Blair & vice versa.  There is one sailing from Vishakapatnam every 3 months.  The Voyage takes about 3/4 days and the ships normally berth at Port Blair for three days.

ENTRY FORMALITIES

FOREIGNERS
Foreign tourists need a special permit to visit the Andaman Islands.  This can be obtained from Indian Missions abroad or the immigration authorities in Mumbai, Calcutta, Delhi, Chennai or on arrival at Port Blair. It can also be obtained from The Director, Ministry of Home Affairs (ANL Division), Government of India, 2nd Floor, North Block, New Delhi - 110 001, through Indian Missions at least 3 months in advance.  Foreign Nationals are not allowed to visit Nicobar Islands.
This permit is valid for Port Blair Municipal Area; Havelock Islands; Long; Neil Islands; Mayabunder, Diglipur, Rangat for a period of one month where night halt is permitted.  However only a day's visit is allowed to places like Jolly Buoy; South Cinque; Red Skin; Moun hariet and Madhuban.

INDIANS
Indian nationals need no special permits to visit Andamans.  However permits are required to visit Nicobar Islands, issued by The Deputy Commissioner, Andamans at Port Blair.