| Williamstown to Lagoa | 3,521.03 mi (5,666.54 km) |
| Williamstown to Lagoa | 2,632.21 mi (4,236.13 km) |
| Williamstown to Lagos | 3,510.75 mi (5,650.00 km) |
| Williamstown to Lamego | 3,444.18 mi (5,542.87 km) |
| Williamstown to Leiria | 3,431.25 mi (5,522.07 km) |
| Williamstown to Lisbon | 3,441.52 mi (5,538.60 km) |
| Williamstown to Loule | 3,543.06 mi (5,702.00 km) |
| Williamstown to Loures | 3,437.76 mi (5,532.54 km) |
| Williamstown to Lourinha | 3,420.40 mi (5,504.60 km) |
| Williamstown to Lousa | 3,448.74 mi (5,550.21 km) |
| Williamstown to Lousada | 3,418.32 mi (5,501.25 km) |
| Williamstown to Macedo de Cavaleiros | 3,473.78 mi (5,590.50 km) |
| Williamstown to Mafamude | 3,405.43 mi (5,480.50 km) |
| Williamstown to Mafra | 3,426.67 mi (5,514.69 km) |
| Williamstown to Maia | 3,401.80 mi (5,474.67 km) |
