| Fort Mohave to Orbetello | 6,085.57 mi (9,793.78 km) |
| Fort Mohave to Oria | 6,400.40 mi (10,300.45 km) |
| Fort Mohave to Oristano | 6,122.56 mi (9,853.32 km) |
| Fort Mohave to Orta Nova | 6,293.36 mi (10,128.18 km) |
| Fort Mohave to Orte | 6,123.96 mi (9,855.57 km) |
| Fort Mohave to Ortona | 6,196.14 mi (9,971.72 km) |
| Fort Mohave to Orvieto | 6,101.30 mi (9,819.10 km) |
| Fort Mohave to Orzinuovi | 5,891.19 mi (9,480.95 km) |
| Fort Mohave to Osimo | 6,106.30 mi (9,827.15 km) |
| Fort Mohave to Ospitaletto | 5,887.88 mi (9,475.63 km) |
| Fort Mohave to Ostuni | 6,386.00 mi (10,277.28 km) |
| Fort Mohave to Ottaviano | 6,278.62 mi (10,104.46 km) |
| Fort Mohave to Ovada | 5,886.71 mi (9,473.74 km) |
| Fort Mohave to Ozieri | 6,103.21 mi (9,822.17 km) |
| Fort Mohave to Paceco | 6,363.64 mi (10,241.28 km) |
