Baku Metro is a rapid transit system in Baku, Azerbaijan. Four lines and 24 stations serve the capital of Azerbaijan. Metro began operation in November 1967.
In August 2015, BakuCard was introduced as a payment method for subway rides. One ride costs 0.20 AZN, and BakuCards can be purchased from vending machines. Baku Metro is open from 06:00 to 24:00.