| Rosemead to Orbetello | 6,254.57 mi (10,065.76 km) |
| Rosemead to Oria | 6,563.71 mi (10,563.26 km) |
| Rosemead to Oristano | 6,298.15 mi (10,135.90 km) |
| Rosemead to Orta Nova | 6,458.17 mi (10,393.42 km) |
| Rosemead to Orte | 6,291.49 mi (10,125.18 km) |
| Rosemead to Ortona | 6,361.26 mi (10,237.45 km) |
| Rosemead to Orvieto | 6,268.81 mi (10,088.68 km) |
| Rosemead to Orzinuovi | 6,057.42 mi (9,748.48 km) |
| Rosemead to Osimo | 6,271.00 mi (10,092.19 km) |
| Rosemead to Ospitaletto | 6,053.72 mi (9,742.51 km) |
| Rosemead to Ostuni | 6,549.06 mi (10,539.69 km) |
| Rosemead to Ottaviano | 6,445.73 mi (10,373.40 km) |
| Rosemead to Ovada | 6,055.55 mi (9,745.47 km) |
| Rosemead to Ozieri | 6,277.40 mi (10,102.50 km) |
| Rosemead to Paceco | 6,537.09 mi (10,520.44 km) |
