| Varna to Oestrich-Winkel | 1,050.74 mi (1,691.00 km) |
| Varna to Offenburg | 1,024.31 mi (1,648.48 km) |
| Varna to Oftersheim | 1,012.34 mi (1,629.21 km) |
| Varna to Ohrdruf | 961.64 mi (1,547.61 km) |
| Varna to Ohringen | 969.47 mi (1,560.20 km) |
| Varna to Olbernhau | 856.68 mi (1,378.69 km) |
| Varna to Olching | 869.51 mi (1,399.34 km) |
| Varna to Oldenburg | 1,131.42 mi (1,820.84 km) |
| Varna to Oldenburg in Holstein | 1,084.73 mi (1,745.71 km) |
| Varna to Olfen | 1,118.79 mi (1,800.52 km) |
| Varna to Olpe | 1,082.15 mi (1,741.55 km) |
| Varna to Olsberg | 1,065.30 mi (1,714.44 km) |
| Varna to Oranienburg | 942.73 mi (1,517.18 km) |
| Varna to Ortenberg | 1,015.48 mi (1,634.25 km) |
| Varna to Oschatz | 888.35 mi (1,429.66 km) |
