| Troisdorf to Lagoa | 1,832.60 mi (2,949.29 km) |
| Troisdorf to Lagos | 1,226.51 mi (1,973.88 km) |
| Troisdorf to Lamego | 980.09 mi (1,577.30 km) |
| Troisdorf to Leiria | 1,084.76 mi (1,745.75 km) |
| Troisdorf to Lisbon | 1,151.53 mi (1,853.22 km) |
| Troisdorf to Loule | 1,203.10 mi (1,936.21 km) |
| Troisdorf to Loures | 1,146.24 mi (1,844.69 km) |
| Troisdorf to Lourinha | 1,129.25 mi (1,817.36 km) |
| Troisdorf to Lousa | 1,046.74 mi (1,684.56 km) |
| Troisdorf to Lousada | 984.97 mi (1,585.16 km) |
| Troisdorf to Macedo de Cavaleiros | 928.19 mi (1,493.77 km) |
| Troisdorf to Mafamude | 1,007.20 mi (1,620.93 km) |
| Troisdorf to Mafra | 1,145.98 mi (1,844.27 km) |
| Troisdorf to Maia | 1,001.71 mi (1,612.10 km) |
| Troisdorf to Mangualde | 1,004.28 mi (1,616.23 km) |
