| Princeton to Oberkirch | 4,849.62 mi (7,804.71 km) |
| Princeton to Obernburg am Main | 4,869.51 mi (7,836.72 km) |
| Princeton to Obernkirchen | 4,821.25 mi (7,759.06 km) |
| Princeton to Oberschleissheim | 5,007.78 mi (8,059.25 km) |
| Princeton to Oberstdorf | 4,969.80 mi (7,998.11 km) |
| Princeton to Obertraubling | 5,017.53 mi (8,074.94 km) |
| Princeton to Obertshausen | 4,851.90 mi (7,808.37 km) |
| Princeton to Oberursel | 4,838.34 mi (7,786.56 km) |
| Princeton to Ochsenfurt | 4,912.86 mi (7,906.48 km) |
| Princeton to Ochsenhausen | 4,940.91 mi (7,951.63 km) |
| Princeton to Ochtrup | 4,743.67 mi (7,634.20 km) |
| Princeton to Odenthal | 4,761.25 mi (7,662.49 km) |
| Princeton to Oelde | 4,789.74 mi (7,708.34 km) |
| Princeton to Oelsnitz | 4,984.95 mi (8,022.51 km) |
| Princeton to Oer-Erkenschwick | 4,756.04 mi (7,654.11 km) |
