Question: how long does it take to get through security at miami international airport?
Answer: Miami International (MIA) Next up, Miami International Airport has the third longest average wait time, at around 19.6 minutes. Security lines run the fastest on Sunday from 10 – 11 p.m. at an average of about 8 minutes. On Thursday from 4 – 5 a.m., however, the security line lags to about 37 minutes long.