| Watertown Town to Lagoa | 3,275.87 mi (5,272.00 km) |
| Watertown Town to Lagoa | 2,403.08 mi (3,867.38 km) |
| Watertown Town to Lagos | 3,265.87 mi (5,255.91 km) |
| Watertown Town to Lamego | 3,189.67 mi (5,133.28 km) |
| Watertown Town to Leiria | 3,180.31 mi (5,118.22 km) |
| Watertown Town to Lisbon | 3,193.19 mi (5,138.95 km) |
| Watertown Town to Loule | 3,297.44 mi (5,306.72 km) |
| Watertown Town to Loures | 3,189.19 mi (5,132.51 km) |
| Watertown Town to Lourinha | 3,171.01 mi (5,103.25 km) |
| Watertown Town to Lousa | 3,196.60 mi (5,144.43 km) |
| Watertown Town to Lousada | 3,163.68 mi (5,091.45 km) |
| Watertown Town to Macedo de Cavaleiros | 3,217.87 mi (5,178.66 km) |
| Watertown Town to Mafamude | 3,151.40 mi (5,071.70 km) |
| Watertown Town to Mafra | 3,177.98 mi (5,114.47 km) |
| Watertown Town to Maia | 3,147.54 mi (5,065.48 km) |
