| Avenal to Orbetello | 6,207.24 mi (9,989.59 km) |
| Avenal to Oria | 6,508.29 mi (10,474.09 km) |
| Avenal to Oristano | 6,260.26 mi (10,074.92 km) |
| Avenal to Orta Nova | 6,404.87 mi (10,307.65 km) |
| Avenal to Orte | 6,242.09 mi (10,045.68 km) |
| Avenal to Ortona | 6,308.53 mi (10,152.60 km) |
| Avenal to Orvieto | 6,219.42 mi (10,009.18 km) |
| Avenal to Orzinuovi | 6,006.66 mi (9,666.78 km) |
| Avenal to Osimo | 6,217.85 mi (10,006.67 km) |
| Avenal to Ospitaletto | 6,002.43 mi (9,659.98 km) |
| Avenal to Ostuni | 6,493.35 mi (10,450.04 km) |
| Avenal to Ottaviano | 6,395.52 mi (10,292.59 km) |
| Avenal to Ovada | 6,008.33 mi (9,669.47 km) |
| Avenal to Ozieri | 6,237.46 mi (10,038.22 km) |
| Avenal to Paceco | 6,495.64 mi (10,453.72 km) |
