| Seia to Krosno Odrzanskie | 1,343.86 mi (2,162.74 km) |
| Seia to Krotoszyn | 1,423.43 mi (2,290.79 km) |
| Seia to Kruszwica | 1,485.84 mi (2,391.24 km) |
| Seia to Krynica | 1,521.55 mi (2,448.69 km) |
| Seia to Krzeszowice | 1,477.28 mi (2,377.45 km) |
| Seia to Kudowa-Zdroj | 1,342.60 mi (2,160.70 km) |
| Seia to Kutno | 1,514.02 mi (2,436.59 km) |
| Seia to Kwidzyn | 1,539.39 mi (2,477.41 km) |
| Seia to Lancut | 1,587.47 mi (2,554.78 km) |
| Seia to Lapy | 1,670.36 mi (2,688.19 km) |
| Seia to Lask | 1,488.66 mi (2,395.77 km) |
| Seia to Laziska Gorne | 1,444.45 mi (2,324.61 km) |
| Seia to Lebork | 1,523.07 mi (2,451.15 km) |
| Seia to Leczna | 1,636.10 mi (2,633.04 km) |
| Seia to Leczyca | 1,502.77 mi (2,418.47 km) |
