| Boston to Kanjiza | 1,014.12 mi (1,632.07 km) |
| Boston to Kikinda | 1,039.13 mi (1,672.32 km) |
| Boston to Kladovo | 1,174.06 mi (1,889.47 km) |
| Boston to Knic | 1,131.55 mi (1,821.06 km) |
| Boston to Knjazevac | 1,215.36 mi (1,955.93 km) |
| Boston to Koceljeva | 1,072.42 mi (1,725.90 km) |
| Boston to Kosjeric | 1,097.80 mi (1,766.73 km) |
| Boston to Kovacica | 1,075.61 mi (1,731.03 km) |
| Boston to Kovin | 1,104.32 mi (1,777.23 km) |
| Boston to Kragujevac | 1,135.57 mi (1,827.52 km) |
| Boston to Kraljevo | 1,139.22 mi (1,833.40 km) |
| Boston to Krupanj | 1,060.60 mi (1,706.88 km) |
| Boston to Krusevac | 1,169.64 mi (1,882.36 km) |
| Boston to Kucevo | 1,142.73 mi (1,839.05 km) |
| Boston to Kula | 1,013.16 mi (1,630.52 km) |
