The classic Andaman route is a triangle: fly into Port Blair, catamaran to Havelock, short hop to Neil, ferry back. Done in the right order it wastes no mornings; done wrong it burns half-days at jetties.
The order that works: Port Blair first night (Cellular Jail + Light & Sound Show), morning ferry to Havelock (90–120 minutes) for two or three nights, the 60-minute hop to Neil for one or two, then the ~2-hour sailing back to Port Blair the afternoon before your flight. Never fly out the same morning as an inter-island ferry — weather buffers exist for a reason.
Five to six days covers the triangle comfortably — it’s exactly the shape of our signature 5N/6D package. With eight or more days you can add Baratang’s caves or slow everything down to island time.