| Welwyn Garden City to Lapua | 1,146.55 mi (1,845.19 km) |
| Welwyn Garden City to Laukaa | 1,210.52 mi (1,948.15 km) |
| Welwyn Garden City to Lauritsala | 1,246.62 mi (2,006.24 km) |
| Welwyn Garden City to Lempaala | 1,113.28 mi (1,791.66 km) |
| Welwyn Garden City to Leppavirta | 1,266.29 mi (2,037.90 km) |
| Welwyn Garden City to Lieksa | 1,352.80 mi (2,177.13 km) |
| Welwyn Garden City to Lieto | 1,049.84 mi (1,689.55 km) |
| Welwyn Garden City to Liminka | 1,275.95 mi (2,053.45 km) |
| Welwyn Garden City to Liperi | 1,314.65 mi (2,115.73 km) |
| Welwyn Garden City to Lohja | 1,093.89 mi (1,760.45 km) |
| Welwyn Garden City to Loimaa | 1,078.68 mi (1,735.97 km) |
| Welwyn Garden City to Loviisa | 1,168.36 mi (1,880.30 km) |
| Welwyn Garden City to Mantsala | 1,143.16 mi (1,839.75 km) |
| Welwyn Garden City to Mariehamn | 960.35 mi (1,545.53 km) |
| Welwyn Garden City to Masku | 1,041.15 mi (1,675.58 km) |
