| Diest to Orzesze | 603.06 mi (970.53 km) |
| Diest to Osowa | 608.84 mi (979.83 km) |
| Diest to Ostroda | 655.55 mi (1,055.01 km) |
| Diest to Ostroleka | 715.00 mi (1,150.69 km) |
| Diest to Ostrow Mazowiecka | 727.54 mi (1,170.86 km) |
| Diest to Ostrow Wielkopolski | 552.44 mi (889.07 km) |
| Diest to Ostrowiec Swietokrzyski | 710.04 mi (1,142.71 km) |
| Diest to Ostrzeszow | 557.78 mi (897.66 km) |
| Diest to Oswiecim | 625.05 mi (1,005.92 km) |
| Diest to Otwock | 699.56 mi (1,125.83 km) |
| Diest to Ozarow Mazowiecki | 679.84 mi (1,094.10 km) |
| Diest to Ozimek | 574.04 mi (923.83 km) |
| Diest to Ozorkow | 615.21 mi (990.08 km) |
| Diest to Pabianice | 619.61 mi (997.16 km) |
| Diest to Parczew | 768.86 mi (1,237.36 km) |
