So far, so good. Departure experience from Berlin. Took about 30 min with Bolt for €50. No…read moretraffic. 80 KMH thru the barn.
After initial security check, Delta and UA, make a right after the duty free. Go thru the door, UA 1st, then Delta. No signage at all or I missed it.
After checking your bag in thru, follow the sign that says "all gates".
If you are leaving EU, you will need to go through the border control again. Gate C and E. For EU residents, automated system. All 2nd class citizen including US, need to follow the sign and manually process.
Once inside the C and D area, plenty of restrooms and stores to pick up goodies of needed.