| Bad Sooden-Allendorf to Oestrich-Winkel | 124.14 mi (199.79 km) |
| Bad Sooden-Allendorf to Offenburg | 214.93 mi (345.90 km) |
| Bad Sooden-Allendorf to Oftersheim | 145.84 mi (234.70 km) |
| Bad Sooden-Allendorf to Ohrdruf | 45.26 mi (72.84 km) |
| Bad Sooden-Allendorf to Ohringen | 145.52 mi (234.19 km) |
| Bad Sooden-Allendorf to Olbernhau | 151.83 mi (244.34 km) |
| Bad Sooden-Allendorf to Olching | 221.19 mi (355.97 km) |
| Bad Sooden-Allendorf to Oldenburg | 148.78 mi (239.43 km) |
| Bad Sooden-Allendorf to Oldenburg in Holstein | 211.79 mi (340.85 km) |
| Bad Sooden-Allendorf to Olfen | 115.76 mi (186.30 km) |
| Bad Sooden-Allendorf to Olpe | 94.98 mi (152.86 km) |
| Bad Sooden-Allendorf to Olsberg | 64.94 mi (104.51 km) |
| Bad Sooden-Allendorf to Oranienburg | 171.64 mi (276.23 km) |
| Bad Sooden-Allendorf to Ortenberg | 75.81 mi (122.01 km) |
| Bad Sooden-Allendorf to Oschatz | 134.97 mi (217.22 km) |
