| Sparks to Oberkirch | 5,564.02 mi (8,954.42 km) |
| Sparks to Obernburg am Main | 5,522.04 mi (8,886.87 km) |
| Sparks to Obernkirchen | 5,388.79 mi (8,672.42 km) |
| Sparks to Oberschleissheim | 5,675.74 mi (9,134.22 km) |
| Sparks to Oberstdorf | 5,687.35 mi (9,152.90 km) |
| Sparks to Obertraubling | 5,651.50 mi (9,095.20 km) |
| Sparks to Obertshausen | 5,501.27 mi (8,853.45 km) |
| Sparks to Oberursel | 5,486.85 mi (8,830.23 km) |
| Sparks to Ochsenfurt | 5,557.49 mi (8,943.92 km) |
| Sparks to Ochsenhausen | 5,641.46 mi (9,079.05 km) |
| Sparks to Ochtrup | 5,341.28 mi (8,595.95 km) |
| Sparks to Odenthal | 5,402.12 mi (8,693.87 km) |
| Sparks to Oelde | 5,386.90 mi (8,669.38 km) |
| Sparks to Oelsnitz | 5,569.88 mi (8,963.85 km) |
| Sparks to Oer-Erkenschwick | 5,373.10 mi (8,647.17 km) |
