| Sint-Martens-Lennik to Nottingham | 270.53 mi (435.37 km) |
| Sint-Martens-Lennik to Nuneaton | 268.50 mi (432.12 km) |
| Sint-Martens-Lennik to Oadby | 255.91 mi (411.85 km) |
| Sint-Martens-Lennik to Oakengates | 311.10 mi (500.66 km) |
| Sint-Martens-Lennik to Oakham | 245.61 mi (395.27 km) |
| Sint-Martens-Lennik to Oldbury | 289.26 mi (465.51 km) |
| Sint-Martens-Lennik to Oldham | 326.11 mi (524.83 km) |
| Sint-Martens-Lennik to Ollerton | 275.32 mi (443.08 km) |
| Sint-Martens-Lennik to Olton | 279.32 mi (449.53 km) |
| Sint-Martens-Lennik to Omagh | 545.03 mi (877.14 km) |
| Sint-Martens-Lennik to Ormesby | 341.85 mi (550.16 km) |
| Sint-Martens-Lennik to Ormskirk | 353.88 mi (569.52 km) |
| Sint-Martens-Lennik to Orpington | 180.22 mi (290.04 km) |
| Sint-Martens-Lennik to Ossett | 313.47 mi (504.49 km) |
| Sint-Martens-Lennik to Oswaldtwistle | 343.11 mi (552.18 km) |
