| Wheeling to Orbetello | 4,521.49 mi (7,276.64 km) |
| Wheeling to Oria | 4,870.99 mi (7,839.09 km) |
| Wheeling to Oristano | 4,501.11 mi (7,243.83 km) |
| Wheeling to Orta Nova | 4,756.06 mi (7,654.14 km) |
| Wheeling to Orte | 4,570.85 mi (7,356.08 km) |
| Wheeling to Ortona | 4,660.42 mi (7,500.21 km) |
| Wheeling to Orvieto | 4,549.35 mi (7,321.47 km) |
| Wheeling to Orzinuovi | 4,359.48 mi (7,015.90 km) |
| Wheeling to Osimo | 4,578.21 mi (7,367.91 km) |
| Wheeling to Ospitaletto | 4,359.79 mi (7,016.40 km) |
| Wheeling to Ostuni | 4,859.29 mi (7,820.26 km) |
| Wheeling to Ottaviano | 4,722.64 mi (7,600.36 km) |
| Wheeling to Ovada | 4,332.32 mi (6,972.19 km) |
| Wheeling to Ozieri | 4,494.23 mi (7,232.76 km) |
| Wheeling to Paceco | 4,751.73 mi (7,647.17 km) |
