| Sessa Aurunca to Oerlinghausen | 782.09 mi (1,258.66 km) |
| Sessa Aurunca to Oestrich-Winkel | 669.64 mi (1,077.68 km) |
| Sessa Aurunca to Offenburg | 579.37 mi (932.40 km) |
| Sessa Aurunca to Oftersheim | 619.02 mi (996.21 km) |
| Sessa Aurunca to Ohrdruf | 680.31 mi (1,094.85 km) |
| Sessa Aurunca to Ohringen | 590.96 mi (951.06 km) |
| Sessa Aurunca to Olbernhau | 652.42 mi (1,049.96 km) |
| Sessa Aurunca to Olching | 498.12 mi (801.64 km) |
| Sessa Aurunca to Oldenburg | 864.96 mi (1,392.02 km) |
| Sessa Aurunca to Oldenburg in Holstein | 913.64 mi (1,470.37 km) |
| Sessa Aurunca to Olfen | 787.76 mi (1,267.77 km) |
| Sessa Aurunca to Olpe | 735.76 mi (1,184.09 km) |
| Sessa Aurunca to Olsberg | 745.33 mi (1,199.49 km) |
| Sessa Aurunca to Oranienburg | 796.70 mi (1,282.16 km) |
| Sessa Aurunca to Ortenberg | 672.31 mi (1,081.98 km) |
