Hello. I'm planning a grand vacation, and I'm stuck at the Germany to USA flight. I'll be arriving to Germany in Berlin, and will probably end up in Bitburg to visit some Air Force friends. They suggested Luxembourg or Frankfurt airports for departing because they are closest to Bitburg.

Checking various websites I have found one way fares for around $5000 and round trip fares for around $500. What is going on here? I'd prefer a one-way flight for under $500.

Can you guys help me to find a reasonable place to look for fares?