| Bull Run to Oerlinghausen | 4,029.06 mi (6,484.15 km) |
| Bull Run to Oestrich-Winkel | 4,058.47 mi (6,531.48 km) |
| Bull Run to Offenburg | 4,100.53 mi (6,599.17 km) |
| Bull Run to Oftersheim | 4,100.52 mi (6,599.15 km) |
| Bull Run to Ohrdruf | 4,142.95 mi (6,667.44 km) |
| Bull Run to Ohringen | 4,142.81 mi (6,667.21 km) |
| Bull Run to Olbernhau | 4,249.55 mi (6,838.98 km) |
| Bull Run to Olching | 4,247.87 mi (6,836.29 km) |
| Bull Run to Oldenburg | 3,979.25 mi (6,403.99 km) |
| Bull Run to Oldenburg in Holstein | 4,047.48 mi (6,513.79 km) |
| Bull Run to Olfen | 3,985.77 mi (6,414.47 km) |
| Bull Run to Olpe | 4,022.92 mi (6,474.26 km) |
| Bull Run to Olsberg | 4,039.24 mi (6,500.53 km) |
| Bull Run to Oranienburg | 4,180.45 mi (6,727.78 km) |
| Bull Run to Ortenberg | 4,090.53 mi (6,583.07 km) |
