| Silves to Opole | 1,595.26 mi (2,567.32 km) |
| Silves to Orzesze | 1,613.26 mi (2,596.28 km) |
| Silves to Osowa | 1,740.58 mi (2,801.20 km) |
| Silves to Ostroda | 1,767.52 mi (2,844.55 km) |
| Silves to Ostroleka | 1,806.46 mi (2,907.22 km) |
| Silves to Ostrow Mazowiecka | 1,811.32 mi (2,915.04 km) |
| Silves to Ostrow Wielkopolski | 1,621.17 mi (2,609.02 km) |
| Silves to Ostrowiec Swietokrzyski | 1,741.45 mi (2,802.59 km) |
| Silves to Ostrzeszow | 1,618.23 mi (2,604.28 km) |
| Silves to Oswiecim | 1,629.51 mi (2,622.44 km) |
| Silves to Otwock | 1,767.68 mi (2,844.81 km) |
| Silves to Ozarow Mazowiecki | 1,752.50 mi (2,820.38 km) |
| Silves to Ozimek | 1,606.52 mi (2,585.45 km) |
| Silves to Ozorkow | 1,686.95 mi (2,714.89 km) |
| Silves to Pabianice | 1,681.24 mi (2,705.69 km) |
