| Biddeford to Krosno Odrzanskie | 3,783.63 mi (6,089.17 km) |
| Biddeford to Krotoszyn | 3,882.71 mi (6,248.61 km) |
| Biddeford to Kruszwica | 3,882.36 mi (6,248.05 km) |
| Biddeford to Krynica | 4,095.88 mi (6,591.67 km) |
| Biddeford to Krzeszowice | 4,019.46 mi (6,468.70 km) |
| Biddeford to Kudowa-Zdroj | 3,879.47 mi (6,243.40 km) |
| Biddeford to Kutno | 3,935.49 mi (6,333.56 km) |
| Biddeford to Kwidzyn | 3,868.64 mi (6,225.97 km) |
| Biddeford to Lancut | 4,119.54 mi (6,629.77 km) |
| Biddeford to Lapy | 4,035.55 mi (6,494.59 km) |
| Biddeford to Lask | 3,949.19 mi (6,355.62 km) |
| Biddeford to Laziska Gorne | 3,989.17 mi (6,419.95 km) |
| Biddeford to Lebork | 3,799.90 mi (6,115.34 km) |
| Biddeford to Leczna | 4,097.45 mi (6,594.21 km) |
| Biddeford to Leczyca | 3,935.71 mi (6,333.91 km) |
