| Niska Banja to Oberkirch | 759.33 mi (1,222.02 km) |
| Niska Banja to Obernburg am Main | 758.59 mi (1,220.83 km) |
| Niska Banja to Obernkirchen | 859.20 mi (1,382.75 km) |
| Niska Banja to Oberschleissheim | 607.78 mi (978.13 km) |
| Niska Banja to Oberstdorf | 635.59 mi (1,022.88 km) |
| Niska Banja to Obertraubling | 611.99 mi (984.90 km) |
| Niska Banja to Obertshausen | 778.48 mi (1,252.85 km) |
| Niska Banja to Oberursel | 793.11 mi (1,276.39 km) |
| Niska Banja to Ochsenfurt | 716.69 mi (1,153.40 km) |
| Niska Banja to Ochsenhausen | 668.09 mi (1,075.19 km) |
| Niska Banja to Ochtrup | 920.35 mi (1,481.16 km) |
| Niska Banja to Odenthal | 877.73 mi (1,412.58 km) |
| Niska Banja to Oelde | 872.26 mi (1,403.76 km) |
| Niska Banja to Oelsnitz | 675.92 mi (1,087.78 km) |
| Niska Banja to Oer-Erkenschwick | 895.80 mi (1,441.66 km) |
