| Vratsa to Oegstgeest | 1,077.73 mi (1,734.44 km) |
| Vratsa to Oirschot | 1,024.50 mi (1,648.77 km) |
| Vratsa to Oisterwijk | 1,030.94 mi (1,659.13 km) |
| Vratsa to Oldebroek | 1,033.99 mi (1,664.05 km) |
| Vratsa to Oldenzaal | 992.15 mi (1,596.71 km) |
| Vratsa to Ommen | 1,017.94 mi (1,638.21 km) |
| Vratsa to Oosterend | 1,048.47 mi (1,687.35 km) |
| Vratsa to Oosterhout | 1,045.94 mi (1,683.28 km) |
| Vratsa to Oosterwolde | 1,040.16 mi (1,673.97 km) |
| Vratsa to Oostzaan | 1,070.45 mi (1,722.72 km) |
| Vratsa to Opmeer | 1,077.12 mi (1,733.46 km) |
| Vratsa to Oss | 1,024.77 mi (1,649.21 km) |
| Vratsa to Oud-Beijerland | 1,068.79 mi (1,720.05 km) |
| Vratsa to Oudenbosch | 1,057.12 mi (1,701.27 km) |
| Vratsa to Oudewater | 1,057.35 mi (1,701.64 km) |
