| Merthyr Tudful to Palencia | 674.21 mi (1,085.04 km) |
| Merthyr Tudful to Palleja | 756.76 mi (1,217.89 km) |
| Merthyr Tudful to Palma | 889.48 mi (1,431.48 km) |
| Merthyr Tudful to Palma del Rio | 974.69 mi (1,568.61 km) |
| Merthyr Tudful to Palomares del Rio | 1,005.23 mi (1,617.77 km) |
| Merthyr Tudful to Palos de la Frontera | 1,017.43 mi (1,637.39 km) |
| Merthyr Tudful to Pamplona | 622.00 mi (1,001.00 km) |
| Merthyr Tudful to Paracuellos de Jarama | 773.39 mi (1,244.65 km) |
| Merthyr Tudful to Parla | 795.20 mi (1,279.75 km) |
| Merthyr Tudful to Paterna | 857.36 mi (1,379.78 km) |
| Merthyr Tudful to Peligros | 1,002.60 mi (1,613.53 km) |
| Merthyr Tudful to Penarroya-Pueblonuevo | 933.31 mi (1,502.01 km) |
| Merthyr Tudful to Petrel | 924.91 mi (1,488.50 km) |
| Merthyr Tudful to Picana | 861.96 mi (1,387.19 km) |
| Merthyr Tudful to Picasent | 866.89 mi (1,395.13 km) |
