| Peterhead to Orbetello | 1,186.02 mi (1,908.71 km) |
| Peterhead to Oria | 1,457.05 mi (2,344.90 km) |
| Peterhead to Oristano | 1,301.57 mi (2,094.67 km) |
| Peterhead to Orta Nova | 1,357.95 mi (2,185.41 km) |
| Peterhead to Orte | 1,210.03 mi (1,947.36 km) |
| Peterhead to Ortona | 1,263.81 mi (2,033.90 km) |
| Peterhead to Orvieto | 1,187.87 mi (1,911.69 km) |
| Peterhead to Orzinuovi | 973.90 mi (1,567.34 km) |
| Peterhead to Osimo | 1,172.85 mi (1,887.52 km) |
| Peterhead to Ospitaletto | 967.40 mi (1,556.87 km) |
| Peterhead to Ostuni | 1,441.77 mi (2,320.30 km) |
| Peterhead to Ottaviano | 1,357.58 mi (2,184.81 km) |
| Peterhead to Ovada | 995.26 mi (1,601.71 km) |
| Peterhead to Ozieri | 1,263.68 mi (2,033.70 km) |
| Peterhead to Paceco | 1,497.40 mi (2,409.84 km) |
