Skymark Airlines Inc. is a Japanese low-cost airline headquartered at Haneda Airport in Ōta, Tokyo, Japan. It operates scheduled services with a main base at Haneda Airport with another base at Kobe Airport where it is the dominant carrier. It also operates a base at Naha Airport. It is the only Japanese airline offering regular scheduled services at Ibaraki Airport north of Tokyo.

Haneda Airport , sometimes referred to as Tokyo-Haneda, is one of two international airports serving the Greater Tokyo Area, the other one being Narita International Airport (NRT). It serves as the primary base of Japan's two largest airlines, Japan Airlines and All Nippon Airways, as well as RegionalPlus Wings Corp., Skymark Airlines, and StarFlyer. It is located in Ōta, Tokyo, 15 kilometers (9.3 mi) south of Tokyo Station. The facility covers 1,522 hectares of land.