| Castleford to Miranda de Ebro | 765.69 mi (1,232.26 km) |
| Castleford to Mislata | 984.95 mi (1,585.12 km) |
| Castleford to Moana | 859.60 mi (1,383.40 km) |
| Castleford to Moguer | 1,165.74 mi (1,876.07 km) |
| Castleford to Molina de Segura | 1,082.11 mi (1,741.48 km) |
| Castleford to Molins de Rey | 864.15 mi (1,390.72 km) |
| Castleford to Mollerusa | 841.38 mi (1,354.07 km) |
| Castleford to Mollet | 857.53 mi (1,380.07 km) |
| Castleford to Moncada | 860.66 mi (1,385.10 km) |
| Castleford to Moncada | 980.12 mi (1,577.34 km) |
| Castleford to Monforte de Lemos | 823.57 mi (1,325.41 km) |
| Castleford to Monforte del Cid | 1,060.08 mi (1,706.04 km) |
| Castleford to Mongat | 862.83 mi (1,388.60 km) |
| Castleford to Monovar | 1,055.97 mi (1,699.42 km) |
| Castleford to Monserrat | 992.71 mi (1,597.61 km) |
