To reach the Andaman and Nicobar Islands, you can travel by air or sea. The fastest and most convenient way is by flight to Veer Savarkar International Airport in Port Blair from major Indian cities like Chennai, Kolkata, Bengaluru, and Delhi. The journey takes around 2-3 hours. Alternatively, passenger ships operate from Chennai, Kolkata, and Visakhapatnam, taking approximately 3-4 days to reach Port Blair. Flights are the preferred option due to their speed and frequency.