| Pike Creek Valley to Orbetello | 4,317.68 mi (6,948.64 km) |
| Pike Creek Valley to Oria | 4,670.53 mi (7,516.50 km) |
| Pike Creek Valley to Oristano | 4,287.10 mi (6,899.42 km) |
| Pike Creek Valley to Orta Nova | 4,555.15 mi (7,330.80 km) |
| Pike Creek Valley to Orte | 4,368.61 mi (7,030.60 km) |
| Pike Creek Valley to Ortona | 4,460.53 mi (7,178.53 km) |
| Pike Creek Valley to Orvieto | 4,347.48 mi (6,996.60 km) |
| Pike Creek Valley to Orzinuovi | 4,162.83 mi (6,699.42 km) |
| Pike Creek Valley to Osimo | 4,380.34 mi (7,049.47 km) |
| Pike Creek Valley to Ospitaletto | 4,163.79 mi (6,700.97 km) |
| Pike Creek Valley to Ostuni | 4,659.39 mi (7,498.56 km) |
| Pike Creek Valley to Ottaviano | 4,518.74 mi (7,272.20 km) |
| Pike Creek Valley to Ovada | 4,131.77 mi (6,649.45 km) |
| Pike Creek Valley to Ozieri | 4,282.53 mi (6,892.07 km) |
| Pike Creek Valley to Paceco | 4,537.82 mi (7,302.92 km) |
