| Ostrow Mazowiecka to Leopoldsburg | 716.47 mi (1,153.05 km) |
| Ostrow Mazowiecka to Lessines | 783.77 mi (1,261.35 km) |
| Ostrow Mazowiecka to Leuven | 744.21 mi (1,197.69 km) |
| Ostrow Mazowiecka to Lichtervelde | 806.67 mi (1,298.20 km) |
| Ostrow Mazowiecka to Liedekerke | 770.27 mi (1,239.62 km) |
| Ostrow Mazowiecka to Liege | 713.06 mi (1,147.55 km) |
| Ostrow Mazowiecka to Lierre | 744.93 mi (1,198.84 km) |
| Ostrow Mazowiecka to Lille | 731.96 mi (1,177.97 km) |
| Ostrow Mazowiecka to Lint | 748.72 mi (1,204.94 km) |
| Ostrow Mazowiecka to Lochristi | 776.17 mi (1,249.13 km) |
| Ostrow Mazowiecka to Lokeren | 769.91 mi (1,239.05 km) |
| Ostrow Mazowiecka to Lommel | 711.78 mi (1,145.49 km) |
| Ostrow Mazowiecka to Londerzeel | 758.59 mi (1,220.84 km) |
| Ostrow Mazowiecka to Louvain-la-Neuve | 757.03 mi (1,218.33 km) |
| Ostrow Mazowiecka to Lovendegem | 785.91 mi (1,264.81 km) |
