| Southborough to Kavak | 1,827.38 mi (2,940.88 km) |
| Southborough to Kayapinar | 2,133.93 mi (3,434.23 km) |
| Southborough to Kayseri | 1,900.56 mi (3,058.66 km) |
| Southborough to Kemalpasa | 1,581.34 mi (2,544.92 km) |
| Southborough to Kemer | 1,792.99 mi (2,885.53 km) |
| Southborough to Keskin | 1,781.06 mi (2,866.35 km) |
| Southborough to Kilimli | 1,631.75 mi (2,626.05 km) |
| Southborough to Kilis | 2,057.53 mi (3,311.27 km) |
| Southborough to Kinik | 1,548.94 mi (2,492.78 km) |
| Southborough to Kirikkale | 1,769.78 mi (2,848.18 km) |
| Southborough to Kirkagac | 1,560.29 mi (2,511.04 km) |
| Southborough to Kirklareli | 1,428.04 mi (2,298.21 km) |
| Southborough to Kirsehir | 1,826.50 mi (2,939.47 km) |
| Southborough to Kizilpinar | 1,478.12 mi (2,378.81 km) |
| Southborough to Kiziltepe | 2,183.14 mi (3,513.43 km) |
