| Seaham to Montevarchi | 971.78 mi (1,563.93 km) |
| Seaham to Monticello Conte Otto | 854.05 mi (1,374.46 km) |
| Seaham to Montichiari | 830.79 mi (1,337.03 km) |
| Seaham to Montignoso | 906.66 mi (1,459.13 km) |
| Seaham to Montopoli in Val d'Arno | 942.27 mi (1,516.44 km) |
| Seaham to Monza | 791.42 mi (1,273.66 km) |
| Seaham to Morbegno | 767.45 mi (1,235.09 km) |
| Seaham to Mori | 822.89 mi (1,324.31 km) |
| Seaham to Morlupo | 1,078.14 mi (1,735.10 km) |
| Seaham to Morrovalle | 1,039.67 mi (1,673.18 km) |
| Seaham to Mortara | 797.94 mi (1,284.16 km) |
| Seaham to Mosciano Sant'Angelo | 1,080.52 mi (1,738.93 km) |
| Seaham to Motta di Livenza | 874.85 mi (1,407.94 km) |
| Seaham to Motta Sant'Anastasia | 1,422.03 mi (2,288.53 km) |
| Seaham to Mottola | 1,292.93 mi (2,080.76 km) |
