[throwaway314158]

Berlin is in Germany, and Paris is in France. That makes it an international flight.

Orlando is in the US, and San Juan is in the US. That makes it a domestic flight.

[monksy]

Curaco, Sint Martin and the Netherlands make it domestic as well.

Also, Paris/French Polynesisan https://en.wikipedia.org/wiki/World%27s_longest_domestic_fli...