Originally Posted by
FlyAO2
If Arriving into E from the US - I understand you are considered sterile and come into the departure lounge ready to board another E Gate.
If your connection leaves from the D gates though -- do you have to go through Security?
Yes, unfortunately there is a security check when entering D. I asked the security agents once and they said "we don't understand it ourselves".
Probably because also non sterile flights arrive in E and take the train to D.