The two flight attendants who survived the crash were found in the tail end of the plane, the most intact part of the wreckage.
One was a 33-year-old man, with the surname Lee, who was rushed to a hospital in Mokpo, about 25km (15.5 mi) south of the airport, but was later transferred to Ewha Womans University Seoul Hospital in the capital, Yonhap news agency reported.
"When I woke up, I had already been rescued," he told doctors at the hospital, according to its director Ju Woong, who spoke during a press briefing.
The survivor, who suffered multiple fractures, is receiving special care due to the risk of after-effects, including total paralysis, Ju said.
The other survivor, a 25-year-old female flight attendant with the surname Koo, is being treated at Asan Medical Center in eastern Seoul, Yonhap added.
She has sustained head and ankle injuries but is reportedly in a stable condition.