| Duncan to Lagoa | 4,809.90 mi (7,740.78 km) |
| Duncan to Lagoa | 3,937.90 mi (6,337.43 km) |
| Duncan to Lagos | 4,800.11 mi (7,725.03 km) |
| Duncan to Lamego | 4,711.49 mi (7,582.41 km) |
| Duncan to Leiria | 4,708.33 mi (7,577.32 km) |
| Duncan to Lisbon | 4,724.46 mi (7,603.29 km) |
| Duncan to Loule | 4,831.10 mi (7,774.91 km) |
| Duncan to Loures | 4,720.21 mi (7,596.44 km) |
| Duncan to Lourinha | 4,701.10 mi (7,565.69 km) |
| Duncan to Lousa | 4,722.74 mi (7,600.52 km) |
| Duncan to Lousada | 4,685.31 mi (7,540.29 km) |
| Duncan to Macedo de Cavaleiros | 4,736.51 mi (7,622.67 km) |
| Duncan to Mafamude | 4,674.31 mi (7,522.58 km) |
| Duncan to Mafra | 4,708.88 mi (7,578.22 km) |
| Duncan to Maia | 4,670.00 mi (7,515.63 km) |
