| Collecchio to Navodari | 904.60 mi (1,455.81 km) |
| Collecchio to Negresti-Oas | 665.17 mi (1,070.49 km) |
| Collecchio to Nehoiu | 785.10 mi (1,263.50 km) |
| Collecchio to Ocna Mures | 668.68 mi (1,076.13 km) |
| Collecchio to Odobesti | 820.98 mi (1,321.24 km) |
| Collecchio to Odorheiu Secuiesc | 736.92 mi (1,185.96 km) |
| Collecchio to Oltenita | 810.24 mi (1,303.95 km) |
| Collecchio to Onesti | 806.79 mi (1,298.40 km) |
| Collecchio to Oradea | 584.46 mi (940.59 km) |
| Collecchio to Orastie | 634.83 mi (1,021.66 km) |
| Collecchio to Oravita | 561.23 mi (903.21 km) |
| Collecchio to Orsova | 597.20 mi (961.11 km) |
| Collecchio to Otelu Rosu | 593.34 mi (954.89 km) |
| Collecchio to Otopeni | 778.14 mi (1,252.30 km) |
| Collecchio to Ovidiu | 902.51 mi (1,452.45 km) |
