| Erquelinnes to Navodari | 1,212.88 mi (1,951.95 km) |
| Erquelinnes to Negresti-Oas | 886.86 mi (1,427.27 km) |
| Erquelinnes to Nehoiu | 1,079.64 mi (1,737.51 km) |
| Erquelinnes to Ocna Mures | 942.72 mi (1,517.16 km) |
| Erquelinnes to Odobesti | 1,100.48 mi (1,771.05 km) |
| Erquelinnes to Odorheiu Secuiesc | 1,007.77 mi (1,621.85 km) |
| Erquelinnes to Oltenita | 1,135.52 mi (1,827.44 km) |
| Erquelinnes to Onesti | 1,073.56 mi (1,727.72 km) |
| Erquelinnes to Oradea | 839.79 mi (1,351.51 km) |
| Erquelinnes to Orastie | 929.89 mi (1,496.51 km) |
| Erquelinnes to Oravita | 891.73 mi (1,435.11 km) |
| Erquelinnes to Orsova | 932.76 mi (1,501.14 km) |
| Erquelinnes to Otelu Rosu | 903.94 mi (1,454.75 km) |
| Erquelinnes to Otopeni | 1,095.34 mi (1,762.78 km) |
| Erquelinnes to Ovidiu | 1,212.27 mi (1,950.95 km) |
