| Mercer Island to Lagoa | 5,305.27 mi (8,538.00 km) |
| Mercer Island to Lagoa | 4,632.05 mi (7,454.56 km) |
| Mercer Island to Lagos | 5,299.10 mi (8,528.08 km) |
| Mercer Island to Lamego | 5,115.67 mi (8,232.87 km) |
| Mercer Island to Leiria | 5,153.98 mi (8,294.53 km) |
| Mercer Island to Lisbon | 5,196.23 mi (8,362.53 km) |
| Mercer Island to Loule | 5,320.06 mi (8,561.81 km) |
| Mercer Island to Loures | 5,189.93 mi (8,352.39 km) |
| Mercer Island to Lourinha | 5,164.17 mi (8,310.93 km) |
| Mercer Island to Lousa | 5,153.53 mi (8,293.81 km) |
| Mercer Island to Lousada | 5,090.78 mi (8,192.82 km) |
| Mercer Island to Macedo de Cavaleiros | 5,120.39 mi (8,240.47 km) |
| Mercer Island to Mafamude | 5,088.40 mi (8,188.98 km) |
| Mercer Island to Mafra | 5,178.52 mi (8,334.02 km) |
| Mercer Island to Maia | 5,081.72 mi (8,178.24 km) |
