| Dearborn to Oberkirch | 4,175.88 mi (6,720.43 km) |
| Dearborn to Obernburg am Main | 4,168.96 mi (6,709.29 km) |
| Dearborn to Obernkirchen | 4,081.36 mi (6,568.31 km) |
| Dearborn to Oberschleissheim | 4,320.79 mi (6,953.63 km) |
| Dearborn to Oberstdorf | 4,303.28 mi (6,925.47 km) |
| Dearborn to Obertraubling | 4,316.00 mi (6,945.93 km) |
| Dearborn to Obertshausen | 4,149.08 mi (6,677.30 km) |
| Dearborn to Oberursel | 4,134.48 mi (6,653.79 km) |
| Dearborn to Ochsenfurt | 4,210.94 mi (6,776.85 km) |
| Dearborn to Ochsenhausen | 4,265.31 mi (6,864.35 km) |
| Dearborn to Ochtrup | 4,012.80 mi (6,457.98 km) |
| Dearborn to Odenthal | 4,050.18 mi (6,518.14 km) |
| Dearborn to Oelde | 4,060.99 mi (6,535.54 km) |
| Dearborn to Oelsnitz | 4,260.58 mi (6,856.74 km) |
| Dearborn to Oer-Erkenschwick | 4,034.25 mi (6,492.50 km) |
