| Watertown to Lapua | 3,828.06 mi (6,160.66 km) |
| Watertown to Laukaa | 3,927.52 mi (6,320.74 km) |
| Watertown to Lauritsala | 4,042.09 mi (6,505.11 km) |
| Watertown to Lempaala | 3,907.44 mi (6,288.42 km) |
| Watertown to Leppavirta | 3,973.71 mi (6,395.06 km) |
| Watertown to Lieksa | 3,999.08 mi (6,435.89 km) |
| Watertown to Lieto | 3,899.72 mi (6,275.99 km) |
| Watertown to Liminka | 3,826.41 mi (6,158.01 km) |
| Watertown to Liperi | 4,013.98 mi (6,459.87 km) |
| Watertown to Lohja | 3,955.72 mi (6,366.12 km) |
| Watertown to Loimaa | 3,904.69 mi (6,283.99 km) |
| Watertown to Loviisa | 4,009.73 mi (6,453.04 km) |
| Watertown to Mantsala | 3,977.11 mi (6,400.54 km) |
| Watertown to Mariehamn | 3,839.57 mi (6,179.18 km) |
| Watertown to Masku | 3,887.02 mi (6,255.55 km) |
