| West Falls Church to Orbetello | 4,417.11 mi (7,108.65 km) |
| West Falls Church to Oria | 4,770.02 mi (7,676.61 km) |
| West Falls Church to Oristano | 4,386.06 mi (7,058.68 km) |
| West Falls Church to Orta Nova | 4,654.63 mi (7,490.90 km) |
| West Falls Church to Orte | 4,468.08 mi (7,190.68 km) |
| West Falls Church to Ortona | 4,560.03 mi (7,338.67 km) |
| West Falls Church to Orvieto | 4,446.96 mi (7,156.68 km) |
| West Falls Church to Orzinuovi | 4,262.35 mi (6,859.60 km) |
| West Falls Church to Osimo | 4,479.86 mi (7,209.63 km) |
| West Falls Church to Ospitaletto | 4,263.31 mi (6,861.14 km) |
| West Falls Church to Ostuni | 4,758.89 mi (7,658.69 km) |
| West Falls Church to Ottaviano | 4,618.15 mi (7,432.20 km) |
| West Falls Church to Ovada | 4,231.27 mi (6,809.57 km) |
| West Falls Church to Ozieri | 4,381.63 mi (7,051.56 km) |
| West Falls Church to Paceco | 4,636.77 mi (7,462.16 km) |
