Being a West Coast team, the Raiders usually rack up the most frequent flyer miles. It’s just the nature of the beast. But the Raiders take put that beast on steroids with their travel plans each season.
Before you start railing at the NFL for hating the Raiders (oh, you already started? Ok), the Raiders do this to themselves voluntarily. They opt into being the home team in international games each season, thus adding to what would be a lot of travel regardless.
All West Coast teams must go the farthest distance to reach most of their games.