| Parlier to Orbetello | 6,156.34 mi (9,907.67 km) |
| Parlier to Oria | 6,457.66 mi (10,392.60 km) |
| Parlier to Oristano | 6,209.20 mi (9,992.74 km) |
| Parlier to Orta Nova | 6,354.16 mi (10,226.03 km) |
| Parlier to Orte | 6,191.25 mi (9,963.85 km) |
| Parlier to Ortona | 6,257.79 mi (10,070.94 km) |
| Parlier to Orvieto | 6,168.57 mi (9,927.35 km) |
| Parlier to Orzinuovi | 5,955.84 mi (9,585.00 km) |
| Parlier to Osimo | 6,167.12 mi (9,925.03 km) |
| Parlier to Ospitaletto | 5,951.63 mi (9,578.23 km) |
| Parlier to Ostuni | 6,442.73 mi (10,368.58 km) |
| Parlier to Ottaviano | 6,344.70 mi (10,210.80 km) |
| Parlier to Ovada | 5,957.42 mi (9,587.54 km) |
| Parlier to Ozieri | 6,186.42 mi (9,956.08 km) |
| Parlier to Paceco | 6,444.62 mi (10,371.62 km) |
