I am flying on June 22, 2016 and would like to get TSA precheck. I began the appointment scheduling online today but the earliest appointment date is May 31st. I called TSA Precheck and they told me that the average time-line for approval in 30 days from fingerprinting.
So it looks like my best option is to do a walk-in. Another poster said that by going in around 8AM opening time, he was able to get in.
Anybody have luck with that?