| Teays Valley to Orbetello | 4,641.11 mi (7,469.15 km) |
| Teays Valley to Oria | 4,991.65 mi (8,033.28 km) |
| Teays Valley to Oristano | 4,617.36 mi (7,430.93 km) |
| Teays Valley to Orta Nova | 4,876.57 mi (7,848.07 km) |
| Teays Valley to Orte | 4,690.94 mi (7,549.34 km) |
| Teays Valley to Ortona | 4,781.18 mi (7,694.57 km) |
| Teays Valley to Orvieto | 4,669.54 mi (7,514.90 km) |
| Teays Valley to Orzinuovi | 4,481.03 mi (7,211.52 km) |
| Teays Valley to Osimo | 4,699.49 mi (7,563.11 km) |
| Teays Valley to Ospitaletto | 4,481.50 mi (7,212.28 km) |
| Teays Valley to Ostuni | 4,980.10 mi (8,014.69 km) |
| Teays Valley to Ottaviano | 4,842.28 mi (7,792.90 km) |
| Teays Valley to Ovada | 4,452.83 mi (7,166.13 km) |
| Teays Valley to Ozieri | 4,611.31 mi (7,421.18 km) |
| Teays Valley to Paceco | 4,868.08 mi (7,834.42 km) |
