| Cayey to Nasaud | 5,332.04 mi (8,581.09 km) |
| Cayey to Navodari | 5,579.78 mi (8,979.79 km) |
| Cayey to Negresti-Oas | 5,278.57 mi (8,495.04 km) |
| Cayey to Nehoiu | 5,451.76 mi (8,773.77 km) |
| Cayey to Ocna Mures | 5,320.54 mi (8,562.59 km) |
| Cayey to Odobesti | 5,480.07 mi (8,819.31 km) |
| Cayey to Odorheiu Secuiesc | 5,388.67 mi (8,672.23 km) |
| Cayey to Oltenita | 5,489.92 mi (8,835.18 km) |
| Cayey to Onesti | 5,457.53 mi (8,783.04 km) |
| Cayey to Oradea | 5,220.94 mi (8,402.29 km) |
| Cayey to Orastie | 5,297.81 mi (8,526.00 km) |
| Cayey to Oravita | 5,237.60 mi (8,429.10 km) |
| Cayey to Orsova | 5,276.13 mi (8,491.10 km) |
| Cayey to Otelu Rosu | 5,262.65 mi (8,469.42 km) |
| Cayey to Otopeni | 5,454.64 mi (8,778.40 km) |
