| Brea to Orbetello | 6,255.60 mi (10,067.42 km) |
| Brea to Oria | 6,565.46 mi (10,566.08 km) |
| Brea to Oristano | 6,298.31 mi (10,136.15 km) |
| Brea to Orta Nova | 6,459.73 mi (10,395.93 km) |
| Brea to Orte | 6,292.71 mi (10,127.14 km) |
| Brea to Ortona | 6,362.78 mi (10,239.90 km) |
| Brea to Orvieto | 6,270.03 mi (10,090.64 km) |
| Brea to Orzinuovi | 6,058.79 mi (9,750.67 km) |
| Brea to Osimo | 6,272.56 mi (10,094.71 km) |
| Brea to Ospitaletto | 6,055.13 mi (9,744.79 km) |
| Brea to Ostuni | 6,550.84 mi (10,542.56 km) |
| Brea to Ottaviano | 6,447.01 mi (10,375.46 km) |
| Brea to Ovada | 6,056.59 mi (9,747.14 km) |
| Brea to Ozieri | 6,277.75 mi (10,103.06 km) |
| Brea to Paceco | 6,537.55 mi (10,521.17 km) |
