| Sessa Aurunca to Oberkirch | 579.61 mi (932.79 km) |
| Sessa Aurunca to Obernburg am Main | 637.95 mi (1,026.68 km) |
| Sessa Aurunca to Obernkirchen | 795.22 mi (1,279.78 km) |
| Sessa Aurunca to Oberschleissheim | 498.46 mi (802.19 km) |
| Sessa Aurunca to Oberstdorf | 463.26 mi (745.55 km) |
| Sessa Aurunca to Obertraubling | 541.12 mi (870.85 km) |
| Sessa Aurunca to Obertshausen | 657.77 mi (1,058.57 km) |
| Sessa Aurunca to Oberursel | 671.03 mi (1,079.92 km) |
| Sessa Aurunca to Ochsenfurt | 610.78 mi (982.96 km) |
| Sessa Aurunca to Ochsenhausen | 511.33 mi (822.91 km) |
| Sessa Aurunca to Ochtrup | 821.78 mi (1,322.53 km) |
| Sessa Aurunca to Odenthal | 750.89 mi (1,208.44 km) |
| Sessa Aurunca to Oelde | 781.66 mi (1,257.95 km) |
| Sessa Aurunca to Oelsnitz | 640.14 mi (1,030.20 km) |
| Sessa Aurunca to Oer-Erkenschwick | 785.62 mi (1,264.34 km) |
