| Letterkenny to Lubbeek | 593.05 mi (954.42 km) |
| Letterkenny to Lummen | 602.41 mi (969.48 km) |
| Letterkenny to Maaseik | 619.85 mi (997.55 km) |
| Letterkenny to Machelen | 577.24 mi (928.98 km) |
| Letterkenny to Maldegem | 529.87 mi (852.75 km) |
| Letterkenny to Malmedy | 653.71 mi (1,052.05 km) |
| Letterkenny to Manage | 586.20 mi (943.40 km) |
| Letterkenny to Marche-en-Famenne | 636.91 mi (1,025.01 km) |
| Letterkenny to Mariakerke | 543.51 mi (874.70 km) |
| Letterkenny to Mechelen | 574.38 mi (924.37 km) |
| Letterkenny to Mechelen-aan-de-Maas | 620.50 mi (998.61 km) |
| Letterkenny to Meerhout | 592.64 mi (953.76 km) |
| Letterkenny to Meise | 572.61 mi (921.53 km) |
| Letterkenny to Melle | 550.79 mi (886.41 km) |
| Letterkenny to Melsele | 559.92 mi (901.11 km) |
