| Trumbull Center to Oberkirch | 3,819.36 mi (6,146.66 km) |
| Trumbull Center to Obernburg am Main | 3,824.21 mi (6,154.47 km) |
| Trumbull Center to Obernkirchen | 3,754.35 mi (6,042.04 km) |
| Trumbull Center to Oberschleissheim | 3,971.27 mi (6,391.14 km) |
| Trumbull Center to Oberstdorf | 3,944.77 mi (6,348.50 km) |
| Trumbull Center to Obertraubling | 3,972.92 mi (6,393.80 km) |
| Trumbull Center to Obertshausen | 3,805.19 mi (6,123.87 km) |
| Trumbull Center to Oberursel | 3,790.94 mi (6,100.92 km) |
| Trumbull Center to Ochsenfurt | 3,867.16 mi (6,223.60 km) |
| Trumbull Center to Ochsenhausen | 3,910.36 mi (6,293.12 km) |
| Trumbull Center to Ochtrup | 3,680.86 mi (5,923.77 km) |
| Trumbull Center to Odenthal | 3,709.23 mi (5,969.43 km) |
| Trumbull Center to Oelde | 3,728.44 mi (6,000.34 km) |
| Trumbull Center to Oelsnitz | 3,927.58 mi (6,320.83 km) |
| Trumbull Center to Oer-Erkenschwick | 3,698.17 mi (5,951.63 km) |
