| Oirschot to Navodari | 1,181.42 mi (1,901.32 km) |
| Oirschot to Negresti-Oas | 845.60 mi (1,360.86 km) |
| Oirschot to Nehoiu | 1,047.73 mi (1,686.17 km) |
| Oirschot to Ocna Mures | 910.03 mi (1,464.56 km) |
| Oirschot to Odobesti | 1,064.92 mi (1,713.83 km) |
| Oirschot to Odorheiu Secuiesc | 972.60 mi (1,565.25 km) |
| Oirschot to Oltenita | 1,109.34 mi (1,785.31 km) |
| Oirschot to Onesti | 1,035.96 mi (1,667.22 km) |
| Oirschot to Oradea | 806.88 mi (1,298.54 km) |
| Oirschot to Orastie | 902.03 mi (1,451.67 km) |
| Oirschot to Oravita | 872.94 mi (1,404.86 km) |
| Oirschot to Orsova | 913.84 mi (1,470.69 km) |
| Oirschot to Otelu Rosu | 880.28 mi (1,416.68 km) |
| Oirschot to Otopeni | 1,068.11 mi (1,718.96 km) |
| Oirschot to Ovidiu | 1,181.15 mi (1,900.87 km) |
