| Newhaven to Orbetello | 781.77 mi (1,258.14 km) |
| Newhaven to Oria | 1,102.70 mi (1,774.62 km) |
| Newhaven to Oristano | 857.85 mi (1,380.58 km) |
| Newhaven to Orta Nova | 991.86 mi (1,596.24 km) |
| Newhaven to Orte | 818.98 mi (1,318.01 km) |
| Newhaven to Ortona | 894.31 mi (1,439.26 km) |
| Newhaven to Orvieto | 796.32 mi (1,281.56 km) |
| Newhaven to Orzinuovi | 588.00 mi (946.30 km) |
| Newhaven to Osimo | 806.31 mi (1,297.62 km) |
| Newhaven to Ospitaletto | 585.79 mi (942.73 km) |
| Newhaven to Ostuni | 1,089.31 mi (1,753.08 km) |
| Newhaven to Ottaviano | 973.72 mi (1,567.04 km) |
| Newhaven to Ovada | 582.77 mi (937.88 km) |
| Newhaven to Ozieri | 825.95 mi (1,329.25 km) |
| Newhaven to Paceco | 1,075.90 mi (1,731.50 km) |
