| Carmel to Orbetello | 4,756.27 mi (7,654.48 km) |
| Carmel to Oria | 5,101.77 mi (8,210.51 km) |
| Carmel to Oristano | 4,745.62 mi (7,637.35 km) |
| Carmel to Orta Nova | 4,987.54 mi (8,026.67 km) |
| Carmel to Orte | 4,804.02 mi (7,731.32 km) |
| Carmel to Ortona | 4,891.11 mi (7,871.48 km) |
| Carmel to Orvieto | 4,782.20 mi (7,696.21 km) |
| Carmel to Orzinuovi | 4,587.77 mi (7,383.30 km) |
| Carmel to Osimo | 4,807.15 mi (7,736.35 km) |
| Carmel to Ospitaletto | 4,587.45 mi (7,382.79 km) |
| Carmel to Ostuni | 5,089.56 mi (8,190.85 km) |
| Carmel to Ottaviano | 4,957.09 mi (7,977.66 km) |
| Carmel to Ovada | 4,564.40 mi (7,345.69 km) |
| Carmel to Ozieri | 4,736.57 mi (7,622.78 km) |
| Carmel to Paceco | 4,995.71 mi (8,039.82 km) |
