| Menomonee Falls to Orbetello | 4,700.25 mi (7,564.32 km) |
| Menomonee Falls to Oria | 5,039.10 mi (8,109.65 km) |
| Menomonee Falls to Oristano | 4,703.91 mi (7,570.22 km) |
| Menomonee Falls to Orta Nova | 4,926.20 mi (7,927.95 km) |
| Menomonee Falls to Orte | 4,745.59 mi (7,637.29 km) |
| Menomonee Falls to Ortona | 4,829.03 mi (7,771.58 km) |
| Menomonee Falls to Orvieto | 4,723.43 mi (7,601.62 km) |
| Menomonee Falls to Orzinuovi | 4,523.58 mi (7,280.00 km) |
| Menomonee Falls to Osimo | 4,743.02 mi (7,633.16 km) |
| Menomonee Falls to Ospitaletto | 4,522.44 mi (7,278.17 km) |
| Menomonee Falls to Ostuni | 5,026.25 mi (8,088.96 km) |
| Menomonee Falls to Ottaviano | 4,899.91 mi (7,885.64 km) |
| Menomonee Falls to Ovada | 4,505.36 mi (7,250.68 km) |
| Menomonee Falls to Ozieri | 4,691.58 mi (7,550.37 km) |
| Menomonee Falls to Paceco | 4,952.32 mi (7,969.99 km) |
