| Keystone to Lagoa | 4,251.55 mi (6,842.20 km) |
| Keystone to Lagoa | 3,321.14 mi (5,344.86 km) |
| Keystone to Lagos | 4,240.25 mi (6,824.02 km) |
| Keystone to Lamego | 4,217.00 mi (6,786.60 km) |
| Keystone to Leiria | 4,188.19 mi (6,740.25 km) |
| Keystone to Lisbon | 4,186.90 mi (6,738.17 km) |
| Keystone to Loule | 4,275.15 mi (6,880.19 km) |
| Keystone to Loures | 4,184.23 mi (6,733.87 km) |
| Keystone to Lourinha | 4,170.70 mi (6,712.09 km) |
| Keystone to Lousa | 4,210.75 mi (6,776.55 km) |
| Keystone to Lousada | 4,192.08 mi (6,746.51 km) |
| Keystone to Macedo de Cavaleiros | 4,252.75 mi (6,844.13 km) |
| Keystone to Mafamude | 4,176.55 mi (6,721.51 km) |
| Keystone to Mafra | 4,173.82 mi (6,717.11 km) |
| Keystone to Maia | 4,174.06 mi (6,717.50 km) |
