| SeaTac to Krosno Odrzanskie | 5,117.71 mi (8,236.15 km) |
| SeaTac to Krotoszyn | 5,185.35 mi (8,345.01 km) |
| SeaTac to Kruszwica | 5,141.03 mi (8,273.68 km) |
| SeaTac to Krynica | 5,393.73 mi (8,680.37 km) |
| SeaTac to Krzeszowice | 5,323.69 mi (8,567.65 km) |
| SeaTac to Kudowa-Zdroj | 5,238.15 mi (8,429.99 km) |
| SeaTac to Kutno | 5,187.78 mi (8,348.93 km) |
| SeaTac to Kwidzyn | 5,086.51 mi (8,185.94 km) |
| SeaTac to Lancut | 5,375.67 mi (8,651.30 km) |
| SeaTac to Lapy | 5,202.18 mi (8,372.11 km) |
| SeaTac to Lask | 5,223.47 mi (8,406.36 km) |
| SeaTac to Laziska Gorne | 5,307.67 mi (8,541.87 km) |
| SeaTac to Lebork | 5,014.80 mi (8,070.54 km) |
| SeaTac to Leczna | 5,308.89 mi (8,543.83 km) |
| SeaTac to Leczyca | 5,196.11 mi (8,362.34 km) |
