にほんこくないこうくう 日本国内航空 LinksSentence search for 日本国内航空Sentence search for にほんこくないこうくうKanji details for 日, 本, 国, 内, 航 and 空Edit in JMdict Noun1. Japan Domestic Airlines (1964-1971)Organization nameOrganization2. Japan Domestic Airlines Discussions Log in to talk about this word.