Air Seoul (Korean: 에어서울) is a South Korean low-cost carrier and a subsidiary of Asiana Airlines. The airline is based at Incheon International Airport just outside of Seoul, from which it operates flights to international destinations. It launched operations on 11 July 2016.

Asiana Airlines Inc. is a South Korean airline headquartered in Seoul. In 2019, it accounted for 25% of South Korea's international aviation market and 20% of its domestic market. It maintains its international hub at Incheon International Airport in Seoul and Gimhae International Airport in Busan, and its domestic hub at Gimpo International Airport in Seoul. It is a full-service airline and a member of Star Alliance.