M4 Metro · Istanbul · 2026
M4: Kadıköy ↔ Sabiha Gökçen Havalimanı
23 stations end-to-end. ₺42 İstanbulkart (standard 2026 single fare). Marmaray short distance (1-7 stations) ₺34. Free/discounted transfers (aktarma) within 120 min.
Line at a glance
Terminals
Kadıköy ↔ Sabiha Gökçen Havalimanı
Stations
23
Hours
06:00–00:00 daily
Fare
₺42 İstanbulkart (standard 2026 single fare). Marmaray short distance (1-7 stations) ₺34. Free/discounted transfers (aktarma) within 120 min.
Stations (in order)
- Kadıköy · transfer: Ferries, T3
- Ayrılık Çeşmesi · transfer: Marmaray
- Acıbadem
- Ünalan · transfer: Metrobus
- Göztepe
- Yenisahra
- Kozyatağı · transfer: M8
- Bostancı · transfer: Marmaray, Ferries
- Küçükyalı
- Maltepe
- Huzurevi
- Gülsuyu
- Esenkent
- Hastane-Adliye
- Soğanlık
- Kartal
- Yakacık-Adnan Kahveci
- Pendik · transfer: Marmaray, YHT
- Tavşantepe
- Fevzi Çakmak-Hastane
- Yayalar-Şeyhli
- Kurtköy
- Sabiha Gökçen Havalimanı
Source: Metro İstanbul official line schematic + Wikipedia cross-reference. For real-time updates check metro.istanbul.
Transfer points
Kadıköy
Connects to: Ferries, T3
Ayrılık Çeşmesi
Connects to: Marmaray
Ünalan
Connects to: Metrobus
Kozyatağı
Connects to: M8
Bostancı
Connects to: Marmaray, Ferries
Pendik
Connects to: Marmaray, YHT