| North Liberty to Orbetello | 4,899.32 mi (7,884.69 km) |
| North Liberty to Oria | 5,236.89 mi (8,427.96 km) |
| North Liberty to Oristano | 4,904.88 mi (7,893.64 km) |
| North Liberty to Orta Nova | 5,124.27 mi (8,246.72 km) |
| North Liberty to Orte | 4,944.25 mi (7,957.01 km) |
| North Liberty to Ortona | 5,027.02 mi (8,090.20 km) |
| North Liberty to Orvieto | 4,922.03 mi (7,921.25 km) |
| North Liberty to Orzinuovi | 4,721.31 mi (7,598.22 km) |
| North Liberty to Osimo | 4,940.66 mi (7,951.23 km) |
| North Liberty to Ospitaletto | 4,720.02 mi (7,596.14 km) |
| North Liberty to Ostuni | 5,223.92 mi (8,407.08 km) |
| North Liberty to Ottaviano | 5,098.72 mi (8,205.59 km) |
| North Liberty to Ovada | 4,704.02 mi (7,570.38 km) |
| North Liberty to Ozieri | 4,892.18 mi (7,873.20 km) |
| North Liberty to Paceco | 5,153.04 mi (8,293.02 km) |
