| Wade Hampton to Orbetello | 4,809.32 mi (7,739.85 km) |
| Wade Hampton to Oria | 5,163.01 mi (8,309.07 km) |
| Wade Hampton to Oristano | 4,774.42 mi (7,683.68 km) |
| Wade Hampton to Orta Nova | 5,047.54 mi (8,123.23 km) |
| Wade Hampton to Orte | 4,860.71 mi (7,822.56 km) |
| Wade Hampton to Ortona | 4,953.24 mi (7,971.47 km) |
| Wade Hampton to Orvieto | 4,839.70 mi (7,788.74 km) |
| Wade Hampton to Orzinuovi | 4,656.37 mi (7,493.70 km) |
| Wade Hampton to Osimo | 4,873.55 mi (7,843.23 km) |
| Wade Hampton to Ospitaletto | 4,657.45 mi (7,495.44 km) |
| Wade Hampton to Ostuni | 5,152.02 mi (8,291.37 km) |
| Wade Hampton to Ottaviano | 5,010.24 mi (8,063.20 km) |
| Wade Hampton to Ovada | 4,624.44 mi (7,442.32 km) |
| Wade Hampton to Ozieri | 4,771.03 mi (7,678.23 km) |
| Wade Hampton to Paceco | 5,024.99 mi (8,086.94 km) |
