T'way Air Co., Ltd., formerly Hansung Airlines, is a South Korean low-cost airline based in Seongsu-dong, Seongdong-gu, Seoul.
In 2018, it is the third largest Korean low-cost carrier in the international market, carried 2.9 million domestic passengers and 4.2 million international passengers. Its international traffic has quadrupled over the past three years while domestic traffic has grown by only 12%.
T'way Air began as Hansung Airlines, which began flying between 2005 and 2008, after which the company reorganized and rebranded in 2010.
The airline was established on 8 August 2010 with two Boeing 737-800s. In 2013 the airline achieved a profit for the first time. In November that year cargo services were launched.
As of July 2020, T'way Air flied to several airports in Guam, Philippines, Vietnam and East Asia.
As of February 2021, T'way Air operates an all-Boeing 737 fleet consisting of 27 aircrafts.
According to wikipedia