Image credit: See TelecomThe metro system in Istanbul consists of three lines:
—M1, Airport—Yenikapi (red) is the most valuable line for travelers as it runs through many of the most look-worthy areas of the European side of Istanbul, including the main business hubs. You can also get on the tram from this metro line.
—M2, Yenikapı—Hacıosman (green) is the metro line that will get you to Taksim Square, as well as the northern commercial and financial districts. From this line you can jump into the ferries and Marmaray (get off Yenikapı).
—M4, Kadıköy—Kartal (pink) is the metro line that connects the Asian side to inner parts of the Anatolian side. You can easily get back to the European side using the metrobus (on Uzunçayır station).
Service hours: 06:00 – 00:00 daily
Service schedule: Intervals are 3 minutes during rush hours and 6-9 minutes during off-rush hours.
Fare: Price is fixed at 4 TL ($1.3) if you pay by cash, and at 2.3 TL ($0.77) if you pay via Istanbulkart
