| Seaham to Manerbio | 826.64 mi (1,330.34 km) |
| Seaham to Manfredonia | 1,203.05 mi (1,936.13 km) |
| Seaham to Maniago | 857.68 mi (1,380.31 km) |
| Seaham to Mantova | 856.55 mi (1,378.48 km) |
| Seaham to Maranello | 894.45 mi (1,439.48 km) |
| Seaham to Marano di Napoli | 1,196.51 mi (1,925.60 km) |
| Seaham to Marano Vicentino | 844.17 mi (1,358.57 km) |
| Seaham to Marcianise | 1,191.82 mi (1,918.05 km) |
| Seaham to Marcon | 877.67 mi (1,412.47 km) |
| Seaham to Mareno di Piave | 863.77 mi (1,390.11 km) |
| Seaham to Margherita di Savoia | 1,225.07 mi (1,971.56 km) |
| Seaham to Mariano Comense | 782.29 mi (1,258.97 km) |
| Seaham to Marigliano | 1,201.80 mi (1,934.12 km) |
| Seaham to Marino | 1,104.79 mi (1,777.98 km) |
| Seaham to Marostica | 848.15 mi (1,364.96 km) |
