| Haskovo to Obernburg am Main | 957.15 mi (1,540.38 km) |
| Haskovo to Obernkirchen | 1,048.22 mi (1,686.95 km) |
| Haskovo to Oberschleissheim | 808.55 mi (1,301.24 km) |
| Haskovo to Oberstdorf | 839.09 mi (1,350.38 km) |
| Haskovo to Obertraubling | 809.20 mi (1,302.29 km) |
| Haskovo to Obertshausen | 976.67 mi (1,571.80 km) |
| Haskovo to Oberursel | 991.16 mi (1,595.13 km) |
| Haskovo to Ochsenfurt | 914.67 mi (1,472.02 km) |
| Haskovo to Ochsenhausen | 870.68 mi (1,401.23 km) |
| Haskovo to Ochtrup | 1,113.20 mi (1,791.52 km) |
| Haskovo to Odenthal | 1,074.84 mi (1,729.78 km) |
| Haskovo to Oelde | 1,064.96 mi (1,713.90 km) |
| Haskovo to Oelsnitz | 866.27 mi (1,394.12 km) |
| Haskovo to Oer-Erkenschwick | 1,090.64 mi (1,755.22 km) |
| Haskovo to Oerlinghausen | 1,051.79 mi (1,692.70 km) |
