| Friern Barnet to Orbetello | 827.82 mi (1,332.25 km) |
| Friern Barnet to Oria | 1,142.17 mi (1,838.14 km) |
| Friern Barnet to Oristano | 910.72 mi (1,465.66 km) |
| Friern Barnet to Orta Nova | 1,032.67 mi (1,661.92 km) |
| Friern Barnet to Orte | 863.00 mi (1,388.86 km) |
| Friern Barnet to Ortona | 935.20 mi (1,505.06 km) |
| Friern Barnet to Orvieto | 840.31 mi (1,352.35 km) |
| Friern Barnet to Orzinuovi | 629.56 mi (1,013.18 km) |
| Friern Barnet to Osimo | 846.21 mi (1,361.84 km) |
| Friern Barnet to Ospitaletto | 626.53 mi (1,008.31 km) |
| Friern Barnet to Ostuni | 1,128.44 mi (1,816.05 km) |
| Friern Barnet to Ottaviano | 1,017.24 mi (1,637.08 km) |
| Friern Barnet to Ovada | 629.20 mi (1,012.61 km) |
| Friern Barnet to Ozieri | 877.77 mi (1,412.64 km) |
| Friern Barnet to Paceco | 1,125.59 mi (1,811.46 km) |
