| Reda to Opole | 273.48 mi (440.12 km) |
| Reda to Orzesze | 309.08 mi (497.41 km) |
| Reda to Osowa | 13.96 mi (22.47 km) |
| Reda to Ostroda | 91.04 mi (146.52 km) |
| Reda to Ostroleka | 169.28 mi (272.43 km) |
| Reda to Ostrow Mazowiecka | 191.88 mi (308.80 km) |
| Reda to Ostrow Wielkopolski | 206.21 mi (331.86 km) |
| Reda to Ostrowiec Swietokrzyski | 284.58 mi (457.98 km) |
| Reda to Ostrzeszow | 221.77 mi (356.91 km) |
| Reda to Oswiecim | 318.48 mi (512.54 km) |
| Reda to Otwock | 210.43 mi (338.65 km) |
| Reda to Ozarow Mazowiecki | 194.08 mi (312.34 km) |
| Reda to Ozimek | 272.54 mi (438.61 km) |
| Reda to Ozorkow | 187.11 mi (301.12 km) |
| Reda to Pabianice | 209.40 mi (337.00 km) |
