| Widnes to Melzo | 768.08 mi (1,236.10 km) |
| Widnes to Mendicino | 1,320.25 mi (2,124.73 km) |
| Widnes to Menfi | 1,321.47 mi (2,126.70 km) |
| Widnes to Mentana | 1,056.75 mi (1,700.67 km) |
| Widnes to Merano | 768.54 mi (1,236.85 km) |
| Widnes to Merate | 758.17 mi (1,220.16 km) |
| Widnes to Mercato San Severino | 1,190.87 mi (1,916.53 km) |
| Widnes to Mercogliano | 1,182.44 mi (1,902.95 km) |
| Widnes to Mesagne | 1,302.28 mi (2,095.81 km) |
| Widnes to Messina | 1,360.99 mi (2,190.31 km) |
| Widnes to Mestre | 862.03 mi (1,387.31 km) |
| Widnes to Mestrino | 847.84 mi (1,364.47 km) |
| Widnes to Milan | 762.71 mi (1,227.47 km) |
| Widnes to Milazzo | 1,350.13 mi (2,172.82 km) |
| Widnes to Minerbio | 879.99 mi (1,416.20 km) |
