| Seaham to Masanasa | 1,067.12 mi (1,717.36 km) |
| Seaham to Masquefa | 932.60 mi (1,500.87 km) |
| Seaham to Matadepera | 927.29 mi (1,492.33 km) |
| Seaham to Mazarron | 1,191.29 mi (1,917.19 km) |
| Seaham to Meco | 991.28 mi (1,595.31 km) |
| Seaham to Medina del Campo | 949.67 mi (1,528.34 km) |
| Seaham to Medina Sidonia | 1,287.89 mi (2,072.66 km) |
| Seaham to Mejorada del Campo | 1,002.36 mi (1,613.15 km) |
| Seaham to Meliana | 1,059.01 mi (1,704.31 km) |
| Seaham to Mengibar | 1,171.46 mi (1,885.28 km) |
| Seaham to Merida | 1,125.60 mi (1,811.49 km) |
| Seaham to Miajadas | 1,106.09 mi (1,780.08 km) |
| Seaham to Mieres | 825.14 mi (1,327.93 km) |
| Seaham to Miguelturra | 1,103.44 mi (1,775.82 km) |
| Seaham to Mijas | 1,269.88 mi (2,043.68 km) |
