Walk or free bus
Between the terminals
T2 and T3 are about a five-minute walk apart. T1 is separate, so you need a bus, train or car to reach it.
Allow extra time between T1 and the domestic terminals. The free Terminal Transfer Bus runs about every 15 minutes, roughly 05:30 to 22:30, and takes about 10 minutes.
You cannot walk between the International and Domestic terminals.
The bus boards on the arrivals level, outside Arrival Hall B at T1, and outside each domestic terminal.
Details are not yet verified. Check times, fares and services with the operator before you travel.