| Donostia to Kayapinar | 2,218.23 mi (3,569.89 km) |
| Donostia to Kayseri | 1,961.96 mi (3,157.47 km) |
| Donostia to Kemalpasa | 1,563.93 mi (2,516.90 km) |
| Donostia to Kemer | 1,771.89 mi (2,851.58 km) |
| Donostia to Keskin | 1,844.97 mi (2,969.19 km) |
| Donostia to Kilimli | 1,718.04 mi (2,764.92 km) |
| Donostia to Kilis | 2,098.36 mi (3,376.98 km) |
| Donostia to Kinik | 1,545.35 mi (2,487.00 km) |
| Donostia to Kirikkale | 1,836.11 mi (2,954.93 km) |
| Donostia to Kirkagac | 1,559.85 mi (2,510.33 km) |
| Donostia to Kirklareli | 1,483.53 mi (2,387.50 km) |
| Donostia to Kirsehir | 1,884.91 mi (3,033.48 km) |
| Donostia to Kizilpinar | 1,528.86 mi (2,460.46 km) |
| Donostia to Kiziltepe | 2,258.87 mi (3,635.30 km) |
| Donostia to Kocaali | 1,677.14 mi (2,699.10 km) |
