The lines are operated by the Fukuoka City Transportation Bureau. Unlike most other public operators in Japan, the company only operates subways without any bus lines.
All stations are equipped with automatic platform gates. All lines are automatically operated by ATO system, although drivers are used as a precaution. The lines introduced Hayakaken, a smart card system from March 2009. This superseded the prepaid magnetic card systems.
|Color & Icon||Mark||Line||Name||First section
|orange||K||Line 1||Kūkō Line||1981||1993||13.1 km (8.1 mi)||13||1,067 mm (3 ft 6 in)|
|blue||H||Line 2||Hakozaki Line||1982||1986||4.7 km (2.9 mi)||7||1,067 mm (3 ft 6 in)|
|green||N||Line 3||Nanakuma Line||2005||-||12.0 km (7.5 mi)||16||1,435 mm (4 ft 8 1⁄2 in)|
|Total:||29.8 km (18.5 mi)||35|
Visitors travelling to Fukuoka by Shinkansen (bullet train) disembark at JR Hakata Station. They can then transfer to the Fukuoka City Subway system by changing to Hakata Subway station, located under JR Hakata station. Fukuoka Airport is also linked to the Fukuoka City Subway. Downtown Fukuoka City can be reached in about 10 minutes by subway, making Fukuoka Airport one of the most accessible major-city airports in the world.
Ticket prices for the subway lines are determined by the distance travelled (¥100-340). The fare for travelling only one station is ¥100, called Otonari Ticket (おとなりきっぷ Otonari-kippu). Tickets for the subway can be purchased at all subway station ticket machines.
Hayakaken is a rechargeable contactless smart card for the Fukuoka City Subway. It can also be used as a Commuter Pass (Chika Pass is included) except as a transferable pass for other company's lines. Starting in 2010, it became compatible with Nishi-Nippon Railroad's nimoca, JR Kyushu's SUGOCA and JR East's Suica. As of March 2013, it also became compatible with PASMO, Manaca, PiTaPa, JR West's ICOCA, JR Central's TOICA and JR Hokkaido's Kitaca.
For details, please see Hayakaken.