| SeaTac to Lapua | 4,574.39 mi (7,361.76 km) |
| SeaTac to Laukaa | 4,646.97 mi (7,478.57 km) |
| SeaTac to Lauritsala | 4,761.34 mi (7,662.64 km) |
| SeaTac to Lempaala | 4,688.27 mi (7,545.05 km) |
| SeaTac to Leppavirta | 4,664.21 mi (7,506.32 km) |
| SeaTac to Lieksa | 4,635.66 mi (7,460.37 km) |
| SeaTac to Lieto | 4,721.56 mi (7,598.61 km) |
| SeaTac to Liminka | 4,488.54 mi (7,223.61 km) |
| SeaTac to Liperi | 4,679.64 mi (7,531.15 km) |
| SeaTac to Lohja | 4,759.99 mi (7,660.47 km) |
| SeaTac to Loimaa | 4,708.17 mi (7,577.07 km) |
| SeaTac to Loviisa | 4,775.60 mi (7,685.58 km) |
| SeaTac to Mantsala | 4,752.51 mi (7,648.42 km) |
| SeaTac to Mariehamn | 4,709.15 mi (7,578.64 km) |
| SeaTac to Masku | 4,712.11 mi (7,583.40 km) |
