| Boise to Karis | 4,923.42 mi (7,923.48 km) |
| Boise to Karkkila | 4,904.87 mi (7,893.62 km) |
| Boise to Kauhajoki | 4,757.69 mi (7,656.76 km) |
| Boise to Kauhava | 4,732.38 mi (7,616.02 km) |
| Boise to Kauniainen | 4,932.55 mi (7,938.17 km) |
| Boise to Kemi | 4,597.46 mi (7,398.90 km) |
| Boise to Kemijarvi | 4,576.87 mi (7,365.77 km) |
| Boise to Kempele | 4,660.41 mi (7,500.21 km) |
| Boise to Kerava | 4,927.45 mi (7,929.97 km) |
| Boise to Keuruu | 4,808.71 mi (7,738.88 km) |
| Boise to Kiiminki | 4,650.83 mi (7,484.79 km) |
| Boise to Kirkkonummi | 4,933.35 mi (7,939.46 km) |
| Boise to Kitee | 4,898.19 mi (7,882.88 km) |
| Boise to Kiuruvesi | 4,752.92 mi (7,649.09 km) |
| Boise to Kivisto | 4,927.92 mi (7,930.72 km) |
