| Silleda to Opole | 1,347.69 mi (2,168.89 km) |
| Silleda to Orzesze | 1,374.89 mi (2,212.68 km) |
| Silleda to Osowa | 1,451.56 mi (2,336.06 km) |
| Silleda to Ostroda | 1,490.17 mi (2,398.20 km) |
| Silleda to Ostroleka | 1,540.03 mi (2,478.44 km) |
| Silleda to Ostrow Mazowiecka | 1,548.62 mi (2,492.26 km) |
| Silleda to Ostrow Wielkopolski | 1,360.75 mi (2,189.92 km) |
| Silleda to Ostrowiec Swietokrzyski | 1,499.51 mi (2,413.23 km) |
| Silleda to Ostrzeszow | 1,361.05 mi (2,190.40 km) |
| Silleda to Oswiecim | 1,393.90 mi (2,243.26 km) |
| Silleda to Otwock | 1,511.20 mi (2,432.05 km) |
| Silleda to Ozarow Mazowiecki | 1,493.71 mi (2,403.89 km) |
| Silleda to Ozimek | 1,359.69 mi (2,188.22 km) |
| Silleda to Ozorkow | 1,427.05 mi (2,296.61 km) |
| Silleda to Pabianice | 1,425.41 mi (2,293.98 km) |
