| Rockport to Oerlinghausen | 5,329.69 mi (8,577.31 km) |
| Rockport to Oestrich-Winkel | 5,370.96 mi (8,643.73 km) |
| Rockport to Offenburg | 5,420.34 mi (8,723.20 km) |
| Rockport to Oftersheim | 5,415.14 mi (8,714.83 km) |
| Rockport to Ohrdruf | 5,446.24 mi (8,764.88 km) |
| Rockport to Ohringen | 5,456.74 mi (8,781.77 km) |
| Rockport to Olbernhau | 5,548.57 mi (8,929.55 km) |
| Rockport to Olching | 5,563.38 mi (8,953.39 km) |
| Rockport to Oldenburg | 5,273.53 mi (8,486.93 km) |
| Rockport to Oldenburg in Holstein | 5,328.84 mi (8,575.94 km) |
| Rockport to Olfen | 5,290.10 mi (8,513.60 km) |
| Rockport to Olpe | 5,330.37 mi (8,578.41 km) |
| Rockport to Olsberg | 5,343.74 mi (8,599.91 km) |
| Rockport to Oranienburg | 5,467.08 mi (8,798.41 km) |
| Rockport to Ortenberg | 5,399.41 mi (8,689.51 km) |
