| Jefferson Valley-Yorktown to Orbetello | 4,174.27 mi (6,717.84 km) |
| Jefferson Valley-Yorktown to Oria | 4,526.47 mi (7,284.64 km) |
| Jefferson Valley-Yorktown to Oristano | 4,146.36 mi (6,672.92 km) |
| Jefferson Valley-Yorktown to Orta Nova | 4,411.15 mi (7,099.06 km) |
| Jefferson Valley-Yorktown to Orte | 4,224.86 mi (6,799.26 km) |
| Jefferson Valley-Yorktown to Ortona | 4,316.31 mi (6,946.43 km) |
| Jefferson Valley-Yorktown to Orvieto | 4,203.65 mi (6,765.12 km) |
| Jefferson Valley-Yorktown to Orzinuovi | 4,017.93 mi (6,466.24 km) |
| Jefferson Valley-Yorktown to Osimo | 4,235.71 mi (6,816.71 km) |
| Jefferson Valley-Yorktown to Ospitaletto | 4,018.78 mi (6,467.60 km) |
| Jefferson Valley-Yorktown to Ostuni | 4,515.20 mi (7,266.52 km) |
| Jefferson Valley-Yorktown to Ottaviano | 4,375.38 mi (7,041.50 km) |
| Jefferson Valley-Yorktown to Ovada | 3,987.62 mi (6,417.46 km) |
| Jefferson Valley-Yorktown to Ozieri | 4,141.11 mi (6,664.48 km) |
| Jefferson Valley-Yorktown to Paceco | 4,397.10 mi (7,076.45 km) |
