| Sion to Opole | 572.18 mi (920.83 km) |
| Sion to Orzesze | 589.18 mi (948.19 km) |
| Sion to Osowa | 746.83 mi (1,201.90 km) |
| Sion to Ostroda | 759.38 mi (1,222.11 km) |
| Sion to Ostroleka | 789.16 mi (1,270.03 km) |
| Sion to Ostrow Mazowiecka | 791.94 mi (1,274.50 km) |
| Sion to Ostrow Wielkopolski | 603.12 mi (970.63 km) |
| Sion to Ostrowiec Swietokrzyski | 717.36 mi (1,154.48 km) |
| Sion to Ostrzeszow | 598.45 mi (963.12 km) |
| Sion to Oswiecim | 605.64 mi (974.68 km) |
| Sion to Otwock | 746.06 mi (1,200.67 km) |
| Sion to Ozarow Mazowiecki | 731.92 mi (1,177.90 km) |
| Sion to Ozimek | 583.21 mi (938.59 km) |
| Sion to Ozorkow | 667.63 mi (1,074.45 km) |
| Sion to Pabianice | 660.11 mi (1,062.35 km) |
