| Dyer to Orbetello | 4,746.46 mi (7,638.70 km) |
| Dyer to Oria | 5,088.55 mi (8,189.23 km) |
| Dyer to Oristano | 4,743.48 mi (7,633.90 km) |
| Dyer to Orta Nova | 4,974.98 mi (8,006.45 km) |
| Dyer to Orte | 4,792.94 mi (7,713.49 km) |
| Dyer to Ortona | 4,878.10 mi (7,850.55 km) |
| Dyer to Orvieto | 4,770.92 mi (7,678.06 km) |
| Dyer to Orzinuovi | 4,573.47 mi (7,360.29 km) |
| Dyer to Osimo | 4,792.99 mi (7,713.57 km) |
| Dyer to Ospitaletto | 4,572.71 mi (7,359.06 km) |
| Dyer to Ostuni | 5,075.98 mi (8,169.00 km) |
| Dyer to Ottaviano | 4,946.76 mi (7,961.04 km) |
| Dyer to Ovada | 4,552.87 mi (7,327.13 km) |
| Dyer to Ozieri | 4,732.68 mi (7,616.51 km) |
| Dyer to Paceco | 4,992.80 mi (8,035.14 km) |
