| Glenn Dale to Lagoa | 3,629.40 mi (5,840.96 km) |
| Glenn Dale to Lagoa | 2,738.68 mi (4,407.49 km) |
| Glenn Dale to Lagos | 3,619.10 mi (5,824.37 km) |
| Glenn Dale to Lamego | 3,553.16 mi (5,718.25 km) |
| Glenn Dale to Leiria | 3,540.09 mi (5,697.22 km) |
| Glenn Dale to Lisbon | 3,550.18 mi (5,713.46 km) |
| Glenn Dale to Loule | 3,651.47 mi (5,876.48 km) |
| Glenn Dale to Loures | 3,546.44 mi (5,707.44 km) |
| Glenn Dale to Lourinha | 3,529.13 mi (5,679.59 km) |
| Glenn Dale to Lousa | 3,557.63 mi (5,725.45 km) |
| Glenn Dale to Lousada | 3,527.30 mi (5,676.64 km) |
| Glenn Dale to Macedo de Cavaleiros | 3,582.78 mi (5,765.92 km) |
| Glenn Dale to Mafamude | 3,514.39 mi (5,655.87 km) |
| Glenn Dale to Mafra | 3,535.35 mi (5,689.60 km) |
| Glenn Dale to Maia | 3,510.78 mi (5,650.05 km) |
