| SeaTac to Leopoldsburg | 4,951.27 mi (7,968.30 km) |
| SeaTac to Lessines | 4,938.63 mi (7,947.96 km) |
| SeaTac to Leuven | 4,950.87 mi (7,967.65 km) |
| SeaTac to Lichtervelde | 4,903.12 mi (7,890.81 km) |
| SeaTac to Liedekerke | 4,936.44 mi (7,944.43 km) |
| SeaTac to Liege | 4,986.25 mi (8,024.59 km) |
| SeaTac to Lierre | 4,933.37 mi (7,939.49 km) |
| SeaTac to Lille | 4,934.27 mi (7,940.94 km) |
| SeaTac to Lint | 4,932.25 mi (7,937.68 km) |
| SeaTac to Lochristi | 4,917.00 mi (7,913.14 km) |
| SeaTac to Lokeren | 4,920.75 mi (7,919.18 km) |
| SeaTac to Lommel | 4,946.13 mi (7,960.02 km) |
| SeaTac to Londerzeel | 4,934.30 mi (7,941.00 km) |
| SeaTac to Louvain-la-Neuve | 4,958.19 mi (7,979.43 km) |
| SeaTac to Lovendegem | 4,911.14 mi (7,903.72 km) |
