Originally Posted by
DenverBrian
Once at the airport, ignore the south side security (near the Westin Hotel) and go to the north side, then up to Level 6. Check to see if bridge security is open to PreCheck; if so, go there and then take the train to the B gates. When PreCheck is open on bridge security, it rarely takes more than 1-2 minutes to clear.
If PreCheck is not running on bridge security (there will be a sign saying so if it's closed), then head back down to level 5 north security PreCheck. It's usually faster than south security PreCheck.
If you don't get PreCheck on your boarding pass, I'd still head to bridge security and go through there. From level 6 you can observe north and south security lines and get a feel for how busy things are.
Precheck usually closes pretty early in the morning on the bridge, I haven't seen it open past noon and they usually close the bridge early evening, so best option as mentioned is the north security. Telling the driver either AA/LH/F9 which puts you on the north side of the terminal (where construction is splitting the interior). Obviously if taking the train you have to walk from the south side to the north along the baggage carousels as the middle section of the terminal is blocked off.