| Fostoria to Orbetello | 4,592.16 mi (7,390.37 km) |
| Fostoria to Oria | 4,938.26 mi (7,947.37 km) |
| Fostoria to Oristano | 4,580.50 mi (7,371.60 km) |
| Fostoria to Orta Nova | 4,823.92 mi (7,763.34 km) |
| Fostoria to Orte | 4,640.13 mi (7,467.56 km) |
| Fostoria to Ortona | 4,727.59 mi (7,608.31 km) |
| Fostoria to Orvieto | 4,618.35 mi (7,432.52 km) |
| Fostoria to Orzinuovi | 4,424.57 mi (7,120.65 km) |
| Fostoria to Osimo | 4,643.88 mi (7,473.60 km) |
| Fostoria to Ospitaletto | 4,424.35 mi (7,120.30 km) |
| Fostoria to Ostuni | 4,926.13 mi (7,927.83 km) |
| Fostoria to Ottaviano | 4,793.05 mi (7,713.66 km) |
| Fostoria to Ovada | 4,400.63 mi (7,082.13 km) |
| Fostoria to Ozieri | 4,571.63 mi (7,357.33 km) |
| Fostoria to Paceco | 4,830.64 mi (7,774.17 km) |
