| Okemos to Orbetello | 4,569.79 mi (7,354.36 km) |
| Okemos to Oria | 4,912.80 mi (7,906.39 km) |
| Okemos to Oristano | 4,565.29 mi (7,347.12 km) |
| Okemos to Orta Nova | 4,799.04 mi (7,723.30 km) |
| Okemos to Orte | 4,616.59 mi (7,429.68 km) |
| Okemos to Ortona | 4,702.27 mi (7,567.58 km) |
| Okemos to Orvieto | 4,594.62 mi (7,394.32 km) |
| Okemos to Orzinuovi | 4,397.97 mi (7,077.85 km) |
| Okemos to Osimo | 4,617.48 mi (7,431.11 km) |
| Okemos to Ospitaletto | 4,397.34 mi (7,076.83 km) |
| Okemos to Ostuni | 4,900.33 mi (7,886.33 km) |
| Okemos to Ottaviano | 4,770.23 mi (7,676.95 km) |
| Okemos to Ovada | 4,376.60 mi (7,043.46 km) |
| Okemos to Ozieri | 4,554.77 mi (7,330.19 km) |
| Okemos to Paceco | 4,814.75 mi (7,748.59 km) |
