| Merthyr Tudful to Yesilyurt | 2,197.29 mi (3,536.20 km) |
| Merthyr Tudful to Yesilyurt | 2,039.27 mi (3,281.89 km) |
| Merthyr Tudful to Yigilca | 1,798.06 mi (2,893.69 km) |
| Merthyr Tudful to Yildirim | 1,735.14 mi (2,792.44 km) |
| Merthyr Tudful to Yildizeli | 2,060.94 mi (3,316.76 km) |
| Merthyr Tudful to Yozgat | 1,986.99 mi (3,197.75 km) |
| Merthyr Tudful to Yuksekova | 2,485.29 mi (3,999.69 km) |
| Merthyr Tudful to Yumurtalik | 2,161.77 mi (3,479.03 km) |
| Merthyr Tudful to Yunak | 1,901.34 mi (3,059.91 km) |
| Merthyr Tudful to Yuregir | 2,132.64 mi (3,432.15 km) |
| Merthyr Tudful to Yusufeli | 2,232.64 mi (3,593.08 km) |
| Merthyr Tudful to Zara | 2,108.70 mi (3,393.63 km) |
| Merthyr Tudful to Zile | 2,012.64 mi (3,239.03 km) |
| Merthyr Tudful to Zonguldak | 1,792.93 mi (2,885.44 km) |
| Merthyr Tudful to Abbots Langley | 126.80 mi (204.07 km) |
