| Windsor to Opole | 804.80 mi (1,295.19 km) |
| Windsor to Orzesze | 847.61 mi (1,364.09 km) |
| Windsor to Osowa | 817.15 mi (1,315.07 km) |
| Windsor to Ostroda | 874.00 mi (1,406.57 km) |
| Windsor to Ostroleka | 940.14 mi (1,513.00 km) |
| Windsor to Ostrow Mazowiecka | 954.92 mi (1,536.80 km) |
| Windsor to Ostrow Wielkopolski | 789.40 mi (1,270.41 km) |
| Windsor to Ostrowiec Swietokrzyski | 949.91 mi (1,528.73 km) |
| Windsor to Ostrzeszow | 796.34 mi (1,281.59 km) |
| Windsor to Oswiecim | 869.75 mi (1,399.73 km) |
| Windsor to Otwock | 932.26 mi (1,500.33 km) |
| Windsor to Ozarow Mazowiecki | 911.90 mi (1,467.56 km) |
| Windsor to Ozimek | 816.73 mi (1,314.40 km) |
| Windsor to Ozorkow | 849.44 mi (1,367.04 km) |
| Windsor to Pabianice | 856.10 mi (1,377.76 km) |
