Lines
Keisei operates 152.8 km of railway which consists of one trunk line named the Main Line and six branchlines.
| Line name | Japanese | Endpoints | Distance (km)  | 
Type1 | 
|---|---|---|---|---|
| Main Line | 本線 | Keisei-Ueno – Komaino Junction | 67.2 | 1 | 
| Komaino Junction – Narita Airport | 2.1 | 2 | ||
| Oshiage Line | 押上線 | Oshiage – Aoto | 5.7 | 1 | 
| Chiba Line | 千葉線 | Keisei-Tsudanuma – Chiba Chūō | 12.9 | 1 | 
| Chihara Line | 千原線 | Chiba Chūō – Chiharadai | 10.9 | 1 | 
| Higashi-Narita Line | 東成田線 | Keisei-Narita – Higashi-narita | 7.1 | 1 | 
| Kanamachi Line | 金町線 | Keisei-Takasago – Keisei-Kanamachi | 2.5 | 1 | 
| Narita Airport Line (Narita Sky Access)  | 
成田空港線 | Keisei-Takasago – Narita Airport | 51.4 | 2 | 
| Overlap | Keisei-Narita – Komaino Junction2 | (6.0) | 1 | |
| Airport Terminal 2 – Narita Airport3 | (1.0) | 2 | ||
| Total | 152.8 | |||
| Projected lines | ||||
| (Chihara Line extension) | Chiharadai – Amaariki | 8.2 | 1 | |
Legend
- "Type" indicates the type of railway business under the Railway Business Act of Japan. Type 1 operator owns and operates the railway while Type 2 operator operates but does not owns the railway.
 - This section is shared by the Main Line and the Higashi-Narita Line.
 - This section is shared by the Main Line and the Narita Airport Line.
 
Read more about this topic: Keisei Electric Railway
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