| Niska Banja to Oerlinghausen | 860.57 mi (1,384.95 km) |
| Niska Banja to Oestrich-Winkel | 807.91 mi (1,300.20 km) |
| Niska Banja to Offenburg | 763.86 mi (1,229.31 km) |
| Niska Banja to Oftersheim | 763.98 mi (1,229.51 km) |
| Niska Banja to Ohrdruf | 741.81 mi (1,193.82 km) |
| Niska Banja to Ohringen | 722.18 mi (1,162.24 km) |
| Niska Banja to Olbernhau | 652.29 mi (1,049.76 km) |
| Niska Banja to Olching | 616.03 mi (991.41 km) |
| Niska Banja to Oldenburg | 927.67 mi (1,492.94 km) |
| Niska Banja to Oldenburg in Holstein | 911.20 mi (1,466.44 km) |
| Niska Banja to Olfen | 894.05 mi (1,438.84 km) |
| Niska Banja to Olpe | 850.86 mi (1,369.33 km) |
| Niska Banja to Olsberg | 840.85 mi (1,353.22 km) |
| Niska Banja to Oranienburg | 767.85 mi (1,235.74 km) |
| Niska Banja to Ortenberg | 781.05 mi (1,256.98 km) |
