| Cities | Distance |
|---|---|
| Olsztyn to Navodari | 748.96 mi (1,205.33 km) |
| Olsztyn to Negresti-Oas | 427.89 mi (688.63 km) |
| Olsztyn to Nehoiu | 637.43 mi (1,025.85 km) |
| Olsztyn to Ocna Mures | 531.84 mi (855.91 km) |
| Olsztyn to Odobesti | 626.10 mi (1,007.60 km) |
| Olsztyn to Odorheiu Secuiesc | 558.01 mi (898.04 km) |
| Olsztyn to Oltenita | 724.91 mi (1,166.64 km) |
| Olsztyn to Onesti | 589.28 mi (948.35 km) |
| Olsztyn to Oradea | 467.61 mi (752.55 km) |
| Olsztyn to Orastie | 560.92 mi (902.71 km) |
| Olsztyn to Oravita | 606.11 mi (975.44 km) |
| Olsztyn to Orsova | 631.35 mi (1,016.06 km) |
| Olsztyn to Otelu Rosu | 576.72 mi (928.15 km) |
| Olsztyn to Otopeni | 685.26 mi (1,102.83 km) |
| Olsztyn to Ovidiu | 750.96 mi (1,208.55 km) |