| Carrigaline to Oria | 1,458.47 mi (2,347.19 km) |
| Carrigaline to Oristano | 1,154.27 mi (1,857.61 km) |
| Carrigaline to Orta Nova | 1,345.06 mi (2,164.67 km) |
| Carrigaline to Orte | 1,164.60 mi (1,874.24 km) |
| Carrigaline to Ortona | 1,248.07 mi (2,008.57 km) |
| Carrigaline to Orvieto | 1,142.34 mi (1,838.42 km) |
| Carrigaline to Orzinuovi | 943.61 mi (1,518.59 km) |
| Carrigaline to Osimo | 1,163.09 mi (1,871.80 km) |
| Carrigaline to Ospitaletto | 943.17 mi (1,517.88 km) |
| Carrigaline to Ostuni | 1,445.93 mi (2,327.00 km) |
| Carrigaline to Ottaviano | 1,319.24 mi (2,123.11 km) |
| Carrigaline to Ovada | 924.39 mi (1,487.66 km) |
| Carrigaline to Ozieri | 1,132.21 mi (1,822.11 km) |
| Carrigaline to Paceco | 1,392.00 mi (2,240.21 km) |
| Carrigaline to Pachino | 1,549.14 mi (2,493.10 km) |
