Verkkothe general consensus is that you should arrive at dia no later than 3 hours before your flight if traveling internationally, or 2 hours if your flight is domestic.
Verkkotravelers who are clear customers with tsa precheck will enter at west security 3 (please note:
Clear customers without tsa precheck must use south security. ).
Arrive at den at least two hours before your boarding time to allow for security screening.
Consider using den reserve for expedited.