| Urbana to Oerlinghausen | 4,365.52 mi (7,025.63 km) |
| Urbana to Oestrich-Winkel | 4,412.74 mi (7,101.61 km) |
| Urbana to Offenburg | 4,466.99 mi (7,188.92 km) |
| Urbana to Oftersheim | 4,458.12 mi (7,174.64 km) |
| Urbana to Ohrdruf | 4,482.92 mi (7,214.57 km) |
| Urbana to Ohringen | 4,499.13 mi (7,240.64 km) |
| Urbana to Olbernhau | 4,583.15 mi (7,375.87 km) |
| Urbana to Olching | 4,606.45 mi (7,413.36 km) |
| Urbana to Oldenburg | 4,307.01 mi (6,931.47 km) |
| Urbana to Oldenburg in Holstein | 4,358.33 mi (7,014.06 km) |
| Urbana to Olfen | 4,327.72 mi (6,964.80 km) |
| Urbana to Olpe | 4,369.44 mi (7,031.93 km) |
| Urbana to Olsberg | 4,381.27 mi (7,050.98 km) |
| Urbana to Oranienburg | 4,497.67 mi (7,238.31 km) |
| Urbana to Ortenberg | 4,439.02 mi (7,143.91 km) |
