| Merthyr Tudful to Kavak | 1,988.03 mi (3,199.43 km) |
| Merthyr Tudful to Kayapinar | 2,294.97 mi (3,693.40 km) |
| Merthyr Tudful to Kayseri | 2,062.33 mi (3,318.99 km) |
| Merthyr Tudful to Kemalpasa | 1,742.06 mi (2,803.57 km) |
| Merthyr Tudful to Kemer | 1,953.97 mi (3,144.62 km) |
| Merthyr Tudful to Keskin | 1,942.87 mi (3,126.74 km) |
| Merthyr Tudful to Kilimli | 1,793.32 mi (2,886.07 km) |
| Merthyr Tudful to Kilis | 2,219.43 mi (3,571.83 km) |
| Merthyr Tudful to Kinik | 1,710.04 mi (2,752.04 km) |
| Merthyr Tudful to Kirikkale | 1,931.56 mi (3,108.54 km) |
| Merthyr Tudful to Kirkagac | 1,721.49 mi (2,770.48 km) |
| Merthyr Tudful to Kirklareli | 1,589.97 mi (2,558.81 km) |
| Merthyr Tudful to Kirsehir | 1,988.34 mi (3,199.92 km) |
| Merthyr Tudful to Kizilpinar | 1,640.05 mi (2,639.40 km) |
| Merthyr Tudful to Kiziltepe | 2,344.38 mi (3,772.92 km) |
