| Carrboro to Orbetello | 4,620.33 mi (7,435.70 km) |
| Carrboro to Oria | 4,974.83 mi (8,006.22 km) |
| Carrboro to Oristano | 4,582.56 mi (7,374.91 km) |
| Carrboro to Orta Nova | 4,859.29 mi (7,820.27 km) |
| Carrboro to Orte | 4,672.17 mi (7,519.13 km) |
| Carrboro to Ortona | 4,765.38 mi (7,669.14 km) |
| Carrboro to Orvieto | 4,651.29 mi (7,485.53 km) |
| Carrboro to Orzinuovi | 4,469.77 mi (7,193.40 km) |
| Carrboro to Osimo | 4,686.40 mi (7,542.03 km) |
| Carrboro to Ospitaletto | 4,471.07 mi (7,195.49 km) |
| Carrboro to Ostuni | 4,964.02 mi (7,988.81 km) |
| Carrboro to Ottaviano | 4,821.09 mi (7,758.79 km) |
| Carrboro to Ovada | 4,436.60 mi (7,140.02 km) |
| Carrboro to Ozieri | 4,579.79 mi (7,370.45 km) |
| Carrboro to Paceco | 4,833.01 mi (7,777.98 km) |
