https://www.gesetze-im-internet.de/l...0BJNE000500000

1)
The tax in accordance with § 1 is charged when the passenger departs from a domestic (german) starting point.

2)
(1) The tax is per passenger for flights to a destination

1. in an Appendix 1 country
13.03 euros
2. in an Appendix 2 country
33.01 euros
3. 59.43 euros in other countries.

USA falls under 3.