| Mays Chapel to Orbetello | 4,371.13 mi (7,034.65 km) |
| Mays Chapel to Oria | 4,723.77 mi (7,602.17 km) |
| Mays Chapel to Oristano | 4,341.16 mi (6,986.43 km) |
| Mays Chapel to Orta Nova | 4,608.41 mi (7,416.51 km) |
| Mays Chapel to Orte | 4,421.95 mi (7,116.45 km) |
| Mays Chapel to Ortona | 4,513.71 mi (7,264.12 km) |
| Mays Chapel to Orvieto | 4,400.80 mi (7,082.40 km) |
| Mays Chapel to Orzinuovi | 4,215.73 mi (6,784.57 km) |
| Mays Chapel to Osimo | 4,433.36 mi (7,134.80 km) |
| Mays Chapel to Ospitaletto | 4,216.64 mi (6,786.03 km) |
| Mays Chapel to Ostuni | 4,712.58 mi (7,584.17 km) |
| Mays Chapel to Ottaviano | 4,572.20 mi (7,358.25 km) |
| Mays Chapel to Ovada | 4,184.97 mi (6,735.06 km) |
| Mays Chapel to Ozieri | 4,336.47 mi (6,978.87 km) |
| Mays Chapel to Paceco | 4,591.89 mi (7,389.94 km) |
