J-Air Co., Ltd. (株式会社ジェイエア, Kabushiki-gaisha Jei Ea^?), is a regional commuter airline with its headquarters in the Terminal Building in Nagoya Airfield and in Toyoyama, Nishikasugai District, Aichi, Japan and its main hub at Nagoya Airfield. J-Air previously had its headquarters in Ōmura, Nagasaki Prefecture. Its operations include scheduled passenger services to 16 destinations across regional Japan, under Japan Airlines' flight numbers. The airline has a fleet 19 aircraft, consisting of Bombardier CRJ-200s and Embraer 170s.

J-Air is a wholly owned subsidiary of Japan's flag carrier, Japan Airlines (JAL) and an affiliate member of the Oneworld alliance. The airline was founded on August 8, 1996, when JAL restructured JAL Flight Academy and J-Air was separated; and began operations as a separate entity from Hiroshima-Nishi Airport on November 1. Faced with limited opportunities for route expansion at Hiroshima, the airline relocated to its new home at Nagoya Airfield, after the opening of Chūbu Centrair International Airport, on February 17, 2005. In the fiscal year ended March 31, 1999, J-Air, together with its sister airlines within the JAL Group, carried over 32 million passengers and over 1.1 million tons of cargo and mail.

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