Iran Press/ Asia: All 194 passengers survived the flight, which landed safely but with its door still open at Daegu International Airport on Friday.
Some passengers fainted while others had breathing problems and were taken to hospital, local media reported.
The man in his 30s said he was feeling suffocated and wanted to get off quickly, Yonhap news agency reported.
Police said the man claimed during questioning that he was stressed after losing his job, according to the report.
Passengers have described the panic on board.
"It was chaos with people close to the door appearing to faint one by one and flight attendants calling out for doctors on board through broadcasting," one 44-year-old passenger told Yonhap.
"I thought the plane was blowing up. I thought I was going to die like this," he added.
216
Read more:
South Korea city wildfire fanned by strong winds, 300 residents evacuate homes
