| Burgas to Obernburg am Main | 1,009.05 mi (1,623.91 km) |
| Burgas to Obernkirchen | 1,086.57 mi (1,748.67 km) |
| Burgas to Oberschleissheim | 865.72 mi (1,393.24 km) |
| Burgas to Oberstdorf | 903.91 mi (1,454.70 km) |
| Burgas to Obertraubling | 860.23 mi (1,384.41 km) |
| Burgas to Obertshausen | 1,027.82 mi (1,654.12 km) |
| Burgas to Oberursel | 1,042.00 mi (1,676.93 km) |
| Burgas to Ochsenfurt | 965.94 mi (1,554.53 km) |
| Burgas to Ochsenhausen | 931.87 mi (1,499.69 km) |
| Burgas to Ochtrup | 1,155.70 mi (1,859.92 km) |
| Burgas to Odenthal | 1,123.60 mi (1,808.26 km) |
| Burgas to Oelde | 1,107.61 mi (1,782.53 km) |
| Burgas to Oelsnitz | 907.86 mi (1,461.06 km) |
| Burgas to Oer-Erkenschwick | 1,135.96 mi (1,828.15 km) |
| Burgas to Oerlinghausen | 1,092.70 mi (1,758.53 km) |
