| Fullerton to Orbetello | 6,259.99 mi (10,074.48 km) |
| Fullerton to Oria | 6,569.78 mi (10,573.04 km) |
| Fullerton to Oristano | 6,302.76 mi (10,143.31 km) |
| Fullerton to Orta Nova | 6,464.07 mi (10,402.92 km) |
| Fullerton to Orte | 6,297.08 mi (10,134.18 km) |
| Fullerton to Ortona | 6,367.12 mi (10,246.89 km) |
| Fullerton to Orvieto | 6,274.40 mi (10,097.68 km) |
| Fullerton to Orzinuovi | 6,063.15 mi (9,757.69 km) |
| Fullerton to Osimo | 6,276.90 mi (10,101.70 km) |
| Fullerton to Ospitaletto | 6,059.49 mi (9,751.80 km) |
| Fullerton to Ostuni | 6,555.16 mi (10,549.51 km) |
| Fullerton to Ottaviano | 6,451.38 mi (10,382.49 km) |
| Fullerton to Ovada | 6,060.98 mi (9,754.20 km) |
| Fullerton to Ozieri | 6,282.19 mi (10,110.21 km) |
| Fullerton to Paceco | 6,541.98 mi (10,528.31 km) |
