| Exeter to Orbetello | 901.42 mi (1,450.70 km) |
| Exeter to Oria | 1,235.92 mi (1,989.02 km) |
| Exeter to Oristano | 949.05 mi (1,527.35 km) |
| Exeter to Orta Nova | 1,122.88 mi (1,807.11 km) |
| Exeter to Orte | 943.78 mi (1,518.86 km) |
| Exeter to Ortona | 1,025.72 mi (1,650.73 km) |
| Exeter to Orvieto | 921.39 mi (1,482.84 km) |
| Exeter to Orzinuovi | 720.70 mi (1,159.86 km) |
| Exeter to Osimo | 940.22 mi (1,513.14 km) |
| Exeter to Ospitaletto | 720.09 mi (1,158.87 km) |
| Exeter to Ostuni | 1,223.24 mi (1,968.62 km) |
| Exeter to Ottaviano | 1,098.68 mi (1,768.15 km) |
| Exeter to Ovada | 703.87 mi (1,132.78 km) |
| Exeter to Ozieri | 923.25 mi (1,485.83 km) |
| Exeter to Paceco | 1,180.61 mi (1,900.02 km) |
