| Tysons to Orbetello | 4,416.62 mi (7,107.86 km) |
| Tysons to Oria | 4,769.46 mi (7,675.70 km) |
| Tysons to Oristano | 4,385.84 mi (7,058.33 km) |
| Tysons to Orta Nova | 4,654.07 mi (7,490.01 km) |
| Tysons to Orte | 4,467.55 mi (7,189.82 km) |
| Tysons to Ortona | 4,559.45 mi (7,337.72 km) |
| Tysons to Orvieto | 4,446.42 mi (7,155.82 km) |
| Tysons to Orzinuovi | 4,261.68 mi (6,858.51 km) |
| Tysons to Osimo | 4,479.22 mi (7,208.61 km) |
| Tysons to Ospitaletto | 4,262.62 mi (6,860.03 km) |
| Tysons to Ostuni | 4,758.30 mi (7,657.75 km) |
| Tysons to Ottaviano | 4,617.67 mi (7,431.43 km) |
| Tysons to Ovada | 4,230.69 mi (6,808.64 km) |
| Tysons to Ozieri | 4,381.35 mi (7,051.11 km) |
| Tysons to Paceco | 4,636.56 mi (7,461.82 km) |
