| Broomall to Oerlinghausen | 3,888.49 mi (6,257.91 km) |
| Broomall to Oestrich-Winkel | 3,917.23 mi (6,304.18 km) |
| Broomall to Offenburg | 3,958.96 mi (6,371.33 km) |
| Broomall to Oftersheim | 3,959.17 mi (6,371.66 km) |
| Broomall to Ohrdruf | 4,002.19 mi (6,440.90 km) |
| Broomall to Ohringen | 4,001.49 mi (6,439.77 km) |
| Broomall to Olbernhau | 4,109.00 mi (6,612.80 km) |
| Broomall to Olching | 4,106.46 mi (6,608.71 km) |
| Broomall to Oldenburg | 3,839.10 mi (6,178.43 km) |
| Broomall to Oldenburg in Holstein | 3,908.18 mi (6,289.62 km) |
| Broomall to Olfen | 3,844.98 mi (6,187.90 km) |
| Broomall to Olpe | 3,881.95 mi (6,247.39 km) |
| Broomall to Olsberg | 3,898.43 mi (6,273.92 km) |
| Broomall to Oranienburg | 4,040.72 mi (6,502.92 km) |
| Broomall to Ortenberg | 3,949.47 mi (6,356.05 km) |
