| State College to Oberkirch | 4,030.15 mi (6,485.90 km) |
| State College to Obernburg am Main | 4,031.02 mi (6,487.30 km) |
| State College to Obernkirchen | 3,954.87 mi (6,364.75 km) |
| State College to Oberschleissheim | 4,179.92 mi (6,726.93 km) |
| State College to Oberstdorf | 4,156.40 mi (6,689.09 km) |
| State College to Obertraubling | 4,179.38 mi (6,726.06 km) |
| State College to Obertshausen | 4,011.68 mi (6,456.17 km) |
| State College to Oberursel | 3,997.28 mi (6,433.00 km) |
| State College to Ochsenfurt | 4,073.70 mi (6,555.99 km) |
| State College to Ochsenhausen | 4,120.75 mi (6,631.71 km) |
| State College to Ochtrup | 3,882.99 mi (6,249.07 km) |
| State College to Odenthal | 3,914.55 mi (6,299.86 km) |
| State College to Oelde | 3,930.87 mi (6,326.12 km) |
| State College to Oelsnitz | 4,130.49 mi (6,647.39 km) |
| State College to Oer-Erkenschwick | 3,901.78 mi (6,279.31 km) |
