If you already work at the airport, it's relatively quick. The steps are: Doing an interview with HR, filling out documentation for HR, completing some paperwork with the airport security in order to attain your security pass which takes time to get. It does take 3 weeks or so.
It's a job at the airport, takes about a month to get hired.
2 weeks after applying, 1 interview by phone then another interview in person about a week later in person at the airport. Then it takes a few days for them to do the inquiry (call previous employers) before you get a call knowing if they hire you or not.
It depends 2 days to 2 weeks you have to pass Airport Security Clearance.
3 weeks, the security pass takes the longest