| Andover to Orbetello | 850.44 mi (1,368.65 km) |
| Andover to Oria | 1,174.31 mi (1,889.88 km) |
| Andover to Oristano | 918.55 mi (1,478.27 km) |
| Andover to Orta Nova | 1,063.08 mi (1,710.86 km) |
| Andover to Orte | 888.86 mi (1,430.49 km) |
| Andover to Ortona | 965.55 mi (1,553.90 km) |
| Andover to Orvieto | 866.24 mi (1,394.09 km) |
| Andover to Orzinuovi | 659.21 mi (1,060.89 km) |
| Andover to Osimo | 877.90 mi (1,412.84 km) |
| Andover to Ospitaletto | 657.26 mi (1,057.77 km) |
| Andover to Ostuni | 1,161.03 mi (1,868.50 km) |
| Andover to Ottaviano | 1,043.77 mi (1,679.78 km) |
| Andover to Ovada | 651.44 mi (1,048.39 km) |
| Andover to Ozieri | 888.50 mi (1,429.90 km) |
| Andover to Paceco | 1,141.01 mi (1,836.28 km) |
