F-Liner

Namesake
The F Liner (Fライナー) is the name for the fastest through service train between 5 railway companies, which are Tobu Railway, Seibu Railway, Tokyo Metro, Tokyu Corporation and Yokohama Minatomirai Railway

The F in F Liner stands for 3 English words starting with the letter F, which are:
 * Fast, which this train is envisioned to become


 * Five, referring to through services between 5 railway companies
 * Fukutoshin (副都心), Japanese for secondary city center

Service Pattern

 * The name "F Liner" is given to trains under the two route systems explained below. The service type of trains may change once across boundary stations for two different lines. Therefore, systematically, the name "F Liner" will be added before the service type, so that all trains F Liner are then distinctively referred to as "F Liner, (Service type on current line)". For instance: Within the Fukutoshin Line → "F Liner, Express", bound for Motomachi-Chūkagai; Within the Toyoko Line → "F Liner, Limited Express", bound for Shinrin-Kōen.
 * Seibu Line system: Hannō / Kotesashi - Motomachi-Chūkagai
 * Seibu Yurakucho Line and Ikebukuro Line: Rapid Express (快速急行)
 * Tokyo Metro Fukutoshin Line: Express (急行)
 * Tōkyū Tōyoko Line and Minatomirai Line: Limited Express (特急)
 * Tōbu Line system: Ogawamachi / Shinrin-Kōen - Motomachi-Chūkagai
 * Tōbu Tōjō Line: Express (急行)
 * Tokyo Metro Fukutoshin Line: Express (急行)
 * Tōkyū Tōyoko Line and Minatomirai Line: Limited Express (特急)

Within the Fukutoshin Line, the Tōyoko Line and the Minatomirai Line, 4 F Liner trains operate every hour at 15-minute intervals during daytime. 2 of which operate on the Tōbu Line system from/to Shinrin-Kōen. The other 2 operate on the Seibu Line system, with one operating from/to Hannō, and the other from/to Kotesashi, each operating at 1-hour intervals. For northbound trains on weekend mornings, only 1 F Liner train operates every hour which terminates at Hannō.[3]

The longest distance travelled for an F Liner journey is 100.1km, from Ogawamachi to Motomachi-Chūkagai.

From 16 March 2019, the Tobu Tojo line began a new timetable, in which on weekends in the morning, there are 3 F-Liner services that begin from Ogawamachi instead of Shinrin-Kōen that head towards Motomachi-Chūkagai. They depart Ogawamachi at 7:54, 8:54 and 9:54. All other F-Liner services that run on the Tobu Tojo line continues to start/end at Shinrin-Kōen station.
 * See also:
 * S-Train
 * Shonan Shinjuku Line
 * Tojo Liner