| Swansea to Manerbio | 4,815.74 mi (7,750.19 km) |
| Swansea to Manfredonia | 5,202.25 mi (8,372.20 km) |
| Swansea to Maniago | 4,885.13 mi (7,861.86 km) |
| Swansea to Mantova | 4,850.28 mi (7,805.77 km) |
| Swansea to Maranello | 4,878.22 mi (7,850.73 km) |
| Swansea to Marano di Napoli | 5,163.45 mi (8,309.77 km) |
| Swansea to Marano Vicentino | 4,853.94 mi (7,811.65 km) |
| Swansea to Marcianise | 5,162.54 mi (8,308.30 km) |
| Swansea to Marcon | 4,893.79 mi (7,875.79 km) |
| Swansea to Mareno di Piave | 4,884.21 mi (7,860.37 km) |
| Swansea to Margherita di Savoia | 5,223.23 mi (8,405.97 km) |
| Swansea to Mariano Comense | 4,764.81 mi (7,668.22 km) |
| Swansea to Marigliano | 5,172.96 mi (8,325.07 km) |
| Swansea to Marino | 5,064.58 mi (8,150.65 km) |
| Swansea to Marostica | 4,860.82 mi (7,822.73 km) |
