| Apache Junction to Orbetello | 6,067.25 mi (9,764.29 km) |
| Apache Junction to Oria | 6,390.53 mi (10,284.56 km) |
| Apache Junction to Oristano | 6,092.89 mi (9,805.56 km) |
| Apache Junction to Orta Nova | 6,281.36 mi (10,108.88 km) |
| Apache Junction to Orte | 6,107.97 mi (9,829.83 km) |
| Apache Junction to Ortona | 6,183.86 mi (9,951.96 km) |
| Apache Junction to Orvieto | 6,085.40 mi (9,793.50 km) |
| Apache Junction to Orzinuovi | 5,877.81 mi (9,459.42 km) |
| Apache Junction to Osimo | 6,094.91 mi (9,808.81 km) |
| Apache Junction to Ospitaletto | 5,875.14 mi (9,455.13 km) |
| Apache Junction to Ostuni | 6,376.55 mi (10,262.07 km) |
| Apache Junction to Ottaviano | 6,262.97 mi (10,079.28 km) |
| Apache Junction to Ovada | 5,869.08 mi (9,445.36 km) |
| Apache Junction to Ozieri | 6,076.03 mi (9,778.43 km) |
| Apache Junction to Paceco | 6,337.20 mi (10,198.73 km) |
