| Modugno to Oerlinghausen | 843.96 mi (1,358.22 km) |
| Modugno to Oestrich-Winkel | 747.35 mi (1,202.75 km) |
| Modugno to Offenburg | 668.92 mi (1,076.52 km) |
| Modugno to Oftersheim | 696.98 mi (1,121.68 km) |
| Modugno to Ohrdruf | 732.74 mi (1,179.23 km) |
| Modugno to Ohringen | 663.00 mi (1,066.99 km) |
| Modugno to Olbernhau | 682.43 mi (1,098.26 km) |
| Modugno to Olching | 560.01 mi (901.26 km) |
| Modugno to Oldenburg | 924.07 mi (1,487.15 km) |
| Modugno to Oldenburg in Holstein | 952.69 mi (1,533.21 km) |
| Modugno to Olfen | 858.87 mi (1,382.22 km) |
| Modugno to Olpe | 808.14 mi (1,300.58 km) |
| Modugno to Olsberg | 811.60 mi (1,306.15 km) |
| Modugno to Oranienburg | 823.32 mi (1,325.00 km) |
| Modugno to Ortenberg | 740.31 mi (1,191.41 km) |
