| Burgas to Oegstgeest | 1,259.47 mi (2,026.92 km) |
| Burgas to Oirschot | 1,208.49 mi (1,944.88 km) |
| Burgas to Oisterwijk | 1,214.65 mi (1,954.80 km) |
| Burgas to Oldebroek | 1,211.97 mi (1,950.47 km) |
| Burgas to Oldenzaal | 1,168.88 mi (1,881.13 km) |
| Burgas to Ommen | 1,194.55 mi (1,922.45 km) |
| Burgas to Oosterend | 1,223.03 mi (1,968.28 km) |
| Burgas to Oosterhout | 1,229.84 mi (1,979.24 km) |
| Burgas to Oosterwolde | 1,214.33 mi (1,954.28 km) |
| Burgas to Oostzaan | 1,250.26 mi (2,012.09 km) |
| Burgas to Opmeer | 1,255.41 mi (2,020.38 km) |
| Burgas to Oss | 1,207.07 mi (1,942.58 km) |
| Burgas to Oud-Beijerland | 1,252.46 mi (2,015.64 km) |
| Burgas to Oudenbosch | 1,241.75 mi (1,998.40 km) |
| Burgas to Oudewater | 1,239.35 mi (1,994.53 km) |
