| Leixlip to Oria | 1,432.08 mi (2,304.71 km) |
| Leixlip to Oristano | 1,168.19 mi (1,880.01 km) |
| Leixlip to Orta Nova | 1,321.35 mi (2,126.51 km) |
| Leixlip to Orte | 1,147.61 mi (1,846.90 km) |
| Leixlip to Ortona | 1,223.80 mi (1,969.52 km) |
| Leixlip to Orvieto | 1,124.99 mi (1,810.50 km) |
| Leixlip to Orzinuovi | 917.49 mi (1,476.55 km) |
| Leixlip to Osimo | 1,135.72 mi (1,827.77 km) |
| Leixlip to Ospitaletto | 915.26 mi (1,472.97 km) |
| Leixlip to Ostuni | 1,418.62 mi (2,283.05 km) |
| Leixlip to Ottaviano | 1,302.52 mi (2,096.20 km) |
| Leixlip to Ovada | 909.92 mi (1,464.37 km) |
| Leixlip to Ozieri | 1,140.80 mi (1,835.94 km) |
| Leixlip to Paceco | 1,396.10 mi (2,246.80 km) |
| Leixlip to Pachino | 1,547.85 mi (2,491.02 km) |
