| Houghton Regis to Montevarchi | 804.81 mi (1,295.22 km) |
| Houghton Regis to Monticello Conte Otto | 701.28 mi (1,128.61 km) |
| Houghton Regis to Montichiari | 668.90 mi (1,076.49 km) |
| Houghton Regis to Montignoso | 734.48 mi (1,182.04 km) |
| Houghton Regis to Montopoli in Val d'Arno | 771.50 mi (1,241.60 km) |
| Houghton Regis to Monza | 623.49 mi (1,003.40 km) |
| Houghton Regis to Morbegno | 605.70 mi (974.78 km) |
| Houghton Regis to Mori | 668.32 mi (1,075.55 km) |
| Houghton Regis to Morlupo | 909.10 mi (1,463.06 km) |
| Houghton Regis to Morrovalle | 882.59 mi (1,420.40 km) |
| Houghton Regis to Mortara | 624.43 mi (1,004.92 km) |
| Houghton Regis to Mosciano Sant'Angelo | 921.76 mi (1,483.42 km) |
| Houghton Regis to Motta di Livenza | 730.17 mi (1,175.10 km) |
| Houghton Regis to Motta Sant'Anastasia | 1,247.17 mi (2,007.13 km) |
| Houghton Regis to Mottola | 1,138.90 mi (1,832.88 km) |
