| Fillmore to Orbetello | 6,262.88 mi (10,079.14 km) |
| Fillmore to Oria | 6,569.59 mi (10,572.73 km) |
| Fillmore to Oristano | 6,309.32 mi (10,153.86 km) |
| Fillmore to Orta Nova | 6,464.69 mi (10,403.91 km) |
| Fillmore to Orte | 6,299.18 mi (10,137.55 km) |
| Fillmore to Ortona | 6,367.94 mi (10,248.20 km) |
| Fillmore to Orvieto | 6,276.50 mi (10,101.05 km) |
| Fillmore to Orzinuovi | 6,064.64 mi (9,760.10 km) |
| Fillmore to Osimo | 6,277.53 mi (10,102.70 km) |
| Fillmore to Ospitaletto | 6,060.78 mi (9,753.88 km) |
| Fillmore to Ostuni | 6,554.85 mi (10,549.01 km) |
| Fillmore to Ottaviano | 6,453.20 mi (10,385.42 km) |
| Fillmore to Ovada | 6,063.86 mi (9,758.84 km) |
| Fillmore to Ozieri | 6,287.95 mi (10,119.48 km) |
| Fillmore to Paceco | 6,547.24 mi (10,536.77 km) |
