| Berwyn to Orbetello | 4,742.99 mi (7,633.11 km) |
| Berwyn to Oria | 5,084.28 mi (8,182.36 km) |
| Berwyn to Oristano | 4,741.69 mi (7,631.01 km) |
| Berwyn to Orta Nova | 4,970.87 mi (7,999.84 km) |
| Berwyn to Orte | 4,789.19 mi (7,707.45 km) |
| Berwyn to Ortona | 4,873.92 mi (7,843.81 km) |
| Berwyn to Orvieto | 4,767.13 mi (7,671.95 km) |
| Berwyn to Orzinuovi | 4,569.05 mi (7,353.17 km) |
| Berwyn to Osimo | 4,788.56 mi (7,706.45 km) |
| Berwyn to Ospitaletto | 4,568.19 mi (7,351.79 km) |
| Berwyn to Ostuni | 5,071.64 mi (8,162.01 km) |
| Berwyn to Ottaviano | 4,943.14 mi (7,955.22 km) |
| Berwyn to Ovada | 4,549.05 mi (7,320.99 km) |
| Berwyn to Ozieri | 4,730.50 mi (7,613.00 km) |
| Berwyn to Paceco | 4,990.80 mi (8,031.92 km) |
