| Szigethalom to Navodari | 506.24 mi (814.72 km) |
| Szigethalom to Negresti-Oas | 209.29 mi (336.82 km) |
| Szigethalom to Nehoiu | 373.40 mi (600.94 km) |
| Szigethalom to Ocna Mures | 237.98 mi (382.98 km) |
| Szigethalom to Odobesti | 397.46 mi (639.64 km) |
| Szigethalom to Odorheiu Secuiesc | 305.45 mi (491.57 km) |
| Szigethalom to Oltenita | 430.16 mi (692.27 km) |
| Szigethalom to Onesti | 374.21 mi (602.23 km) |
| Szigethalom to Oradea | 137.80 mi (221.77 km) |
| Szigethalom to Orastie | 223.31 mi (359.38 km) |
| Szigethalom to Oravita | 202.75 mi (326.30 km) |
| Szigethalom to Orsova | 241.72 mi (389.02 km) |
| Szigethalom to Otelu Rosu | 201.96 mi (325.02 km) |
| Szigethalom to Otopeni | 389.24 mi (626.43 km) |
| Szigethalom to Ovidiu | 505.55 mi (813.61 km) |
