Was the Hindenburg the only Nazi aircraft to fly over American soil?

First Nazi was a political party in Germany. While slang might have referred all Germans as Nazi that isn't true. Like wise not all Nazi were German. So your question could easily be said who many Democrat aircraft fly over the US?

Now the German Government still had regular flights to the USA and North America pre 1939. They included both lighter than aircraft (dirigible) and conventional fixed wing aircraft.