| Duluth to Lagoa | 4,146.07 mi (6,672.45 km) |
| Duluth to Lagoa | 3,356.68 mi (5,402.05 km) |
| Duluth to Lagos | 4,137.72 mi (6,659.02 km) |
| Duluth to Lamego | 4,006.96 mi (6,448.58 km) |
| Duluth to Leiria | 4,020.94 mi (6,471.08 km) |
| Duluth to Lisbon | 4,048.61 mi (6,515.62 km) |
| Duluth to Loule | 4,164.82 mi (6,702.63 km) |
| Duluth to Loures | 4,043.39 mi (6,507.20 km) |
| Duluth to Lourinha | 4,021.03 mi (6,471.22 km) |
| Duluth to Lousa | 4,029.37 mi (6,484.65 km) |
| Duluth to Lousada | 3,980.80 mi (6,406.48 km) |
| Duluth to Macedo de Cavaleiros | 4,024.32 mi (6,476.51 km) |
| Duluth to Mafamude | 3,973.10 mi (6,394.09 km) |
| Duluth to Mafra | 4,031.81 mi (6,488.57 km) |
| Duluth to Maia | 3,967.73 mi (6,385.45 km) |
