| Hockessin to Oberkirch | 3,984.75 mi (6,412.84 km) |
| Hockessin to Obernburg am Main | 3,989.48 mi (6,420.45 km) |
| Hockessin to Obernkirchen | 3,919.13 mi (6,307.24 km) |
| Hockessin to Oberschleissheim | 4,136.62 mi (6,657.25 km) |
| Hockessin to Oberstdorf | 4,110.18 mi (6,614.69 km) |
| Hockessin to Obertraubling | 4,138.18 mi (6,659.75 km) |
| Hockessin to Obertshausen | 3,970.45 mi (6,389.81 km) |
| Hockessin to Oberursel | 3,956.18 mi (6,366.86 km) |
| Hockessin to Ochsenfurt | 4,032.42 mi (6,489.55 km) |
| Hockessin to Ochsenhausen | 4,075.76 mi (6,559.29 km) |
| Hockessin to Ochtrup | 3,845.79 mi (6,189.21 km) |
| Hockessin to Odenthal | 3,874.41 mi (6,235.26 km) |
| Hockessin to Oelde | 3,893.40 mi (6,265.83 km) |
| Hockessin to Oelsnitz | 4,092.60 mi (6,586.40 km) |
| Hockessin to Oer-Erkenschwick | 3,863.23 mi (6,217.26 km) |
