| Herndon to Kidricevo | 4,477.59 mi (7,205.99 km) |
| Herndon to Kobarid | 4,391.73 mi (7,067.81 km) |
| Herndon to Kobilje | 4,492.01 mi (7,229.20 km) |
| Herndon to Kocevje | 4,465.91 mi (7,187.19 km) |
| Herndon to Komen | 4,413.74 mi (7,103.23 km) |
| Herndon to Komenda | 4,432.85 mi (7,133.99 km) |
| Herndon to Koper | 4,422.22 mi (7,116.88 km) |
| Herndon to Kostanjevica na Krki | 4,482.13 mi (7,213.29 km) |
| Herndon to Kostel | 4,472.76 mi (7,198.21 km) |
| Herndon to Kozje | 4,479.57 mi (7,209.17 km) |
| Herndon to Kranj | 4,424.83 mi (7,121.08 km) |
| Herndon to Kranjska Gora | 4,392.19 mi (7,068.55 km) |
| Herndon to Krizevci | 4,485.94 mi (7,219.42 km) |
| Herndon to Krsko | 4,480.86 mi (7,211.24 km) |
| Herndon to Kuzma | 4,474.03 mi (7,200.26 km) |
