| Ronkonkoma to Orbetello | 4,163.45 mi (6,700.42 km) |
| Ronkonkoma to Oria | 4,516.52 mi (7,268.64 km) |
| Ronkonkoma to Oristano | 4,132.43 mi (6,650.50 km) |
| Ronkonkoma to Orta Nova | 4,401.11 mi (7,082.90 km) |
| Ronkonkoma to Orte | 4,214.49 mi (6,782.57 km) |
| Ronkonkoma to Ortona | 4,306.59 mi (6,930.79 km) |
| Ronkonkoma to Orvieto | 4,193.39 mi (6,748.61 km) |
| Ronkonkoma to Orzinuovi | 4,009.24 mi (6,452.25 km) |
| Ronkonkoma to Osimo | 4,226.60 mi (6,802.05 km) |
| Ronkonkoma to Ospitaletto | 4,010.27 mi (6,453.91 km) |
| Ronkonkoma to Ostuni | 4,505.43 mi (7,250.78 km) |
| Ronkonkoma to Ottaviano | 4,364.48 mi (7,023.95 km) |
| Ronkonkoma to Ovada | 3,977.82 mi (6,401.68 km) |
| Ronkonkoma to Ozieri | 4,127.91 mi (6,643.23 km) |
| Ronkonkoma to Paceco | 4,383.15 mi (7,054.00 km) |
