| Forfar to Orbetello | 1,162.43 mi (1,870.75 km) |
| Forfar to Oria | 1,445.96 mi (2,327.05 km) |
| Forfar to Oristano | 1,267.35 mi (2,039.61 km) |
| Forfar to Orta Nova | 1,343.88 mi (2,162.77 km) |
| Forfar to Orte | 1,189.65 mi (1,914.56 km) |
| Forfar to Ortona | 1,248.47 mi (2,009.21 km) |
| Forfar to Orvieto | 1,167.24 mi (1,878.50 km) |
| Forfar to Orzinuovi | 952.75 mi (1,533.31 km) |
| Forfar to Osimo | 1,157.49 mi (1,862.80 km) |
| Forfar to Ospitaletto | 947.06 mi (1,524.15 km) |
| Forfar to Ostuni | 1,430.99 mi (2,302.96 km) |
| Forfar to Ottaviano | 1,339.64 mi (2,155.94 km) |
| Forfar to Ovada | 968.42 mi (1,558.51 km) |
| Forfar to Ozieri | 1,231.35 mi (1,981.67 km) |
| Forfar to Paceco | 1,470.59 mi (2,366.69 km) |
