| Cayce to Nasaud | 5,175.68 mi (8,329.45 km) |
| Cayce to Navodari | 5,459.58 mi (8,786.34 km) |
| Cayce to Negresti-Oas | 5,115.11 mi (8,231.97 km) |
| Cayce to Nehoiu | 5,326.25 mi (8,571.78 km) |
| Cayce to Ocna Mures | 5,188.79 mi (8,350.55 km) |
| Cayce to Odobesti | 5,339.37 mi (8,592.89 km) |
| Cayce to Odorheiu Secuiesc | 5,248.49 mi (8,446.63 km) |
| Cayce to Oltenita | 5,390.74 mi (8,675.56 km) |
| Cayce to Onesti | 5,307.87 mi (8,542.19 km) |
| Cayce to Oradea | 5,086.16 mi (8,185.39 km) |
| Cayce to Orastie | 5,183.28 mi (8,341.69 km) |
| Cayce to Oravita | 5,152.61 mi (8,292.32 km) |
| Cayce to Orsova | 5,193.64 mi (8,358.36 km) |
| Cayce to Otelu Rosu | 5,161.77 mi (8,307.07 km) |
| Cayce to Otopeni | 5,349.28 mi (8,608.83 km) |
