| Ealing to Orbetello | 827.42 mi (1,331.60 km) |
| Ealing to Oria | 1,143.34 mi (1,840.03 km) |
| Ealing to Oristano | 908.20 mi (1,461.61 km) |
| Ealing to Orta Nova | 1,033.54 mi (1,663.32 km) |
| Ealing to Orte | 863.11 mi (1,389.03 km) |
| Ealing to Ortona | 936.04 mi (1,506.41 km) |
| Ealing to Orvieto | 840.43 mi (1,352.53 km) |
| Ealing to Orzinuovi | 630.18 mi (1,014.18 km) |
| Ealing to Osimo | 847.25 mi (1,363.51 km) |
| Ealing to Ospitaletto | 627.33 mi (1,009.59 km) |
| Ealing to Ostuni | 1,129.68 mi (1,818.05 km) |
| Ealing to Ottaviano | 1,017.49 mi (1,637.49 km) |
| Ealing to Ovada | 628.66 mi (1,011.73 km) |
| Ealing to Ozieri | 875.65 mi (1,409.22 km) |
| Ealing to Paceco | 1,124.19 mi (1,809.21 km) |
