| IJsselstein to Navodari | 1,202.37 mi (1,935.03 km) |
| IJsselstein to Negresti-Oas | 863.67 mi (1,389.94 km) |
| IJsselstein to Nehoiu | 1,068.74 mi (1,719.96 km) |
| IJsselstein to Ocna Mures | 931.04 mi (1,498.37 km) |
| IJsselstein to Odobesti | 1,084.62 mi (1,745.53 km) |
| IJsselstein to Odorheiu Secuiesc | 992.61 mi (1,597.45 km) |
| IJsselstein to Oltenita | 1,132.14 mi (1,822.00 km) |
| IJsselstein to Onesti | 1,054.98 mi (1,697.82 km) |
| IJsselstein to Oradea | 828.07 mi (1,332.65 km) |
| IJsselstein to Orastie | 924.66 mi (1,488.09 km) |
| IJsselstein to Oravita | 898.41 mi (1,445.84 km) |
| IJsselstein to Orsova | 939.19 mi (1,511.48 km) |
| IJsselstein to Otelu Rosu | 904.28 mi (1,455.30 km) |
| IJsselstein to Otopeni | 1,090.63 mi (1,755.21 km) |
| IJsselstein to Ovidiu | 1,202.21 mi (1,934.77 km) |
