| South San Francisco to Montevarchi | 6,131.07 mi (9,867.00 km) |
| South San Francisco to Monticello Conte Otto | 6,013.85 mi (9,678.35 km) |
| South San Francisco to Montichiari | 5,991.00 mi (9,641.58 km) |
| South San Francisco to Montignoso | 6,063.15 mi (9,757.70 km) |
| South San Francisco to Montopoli in Val d'Arno | 6,099.72 mi (9,816.54 km) |
| South San Francisco to Monza | 5,949.83 mi (9,575.33 km) |
| South San Francisco to Morbegno | 5,927.55 mi (9,539.46 km) |
| South San Francisco to Mori | 5,983.10 mi (9,628.87 km) |
| South San Francisco to Morlupo | 6,236.79 mi (10,037.14 km) |
| South San Francisco to Morrovalle | 6,199.77 mi (9,977.56 km) |
| South San Francisco to Mortara | 5,953.25 mi (9,580.84 km) |
| South San Francisco to Mosciano Sant'Angelo | 6,240.82 mi (10,043.63 km) |
| South San Francisco to Motta di Livenza | 6,031.57 mi (9,706.88 km) |
| South San Francisco to Motta Sant'Anastasia | 6,576.61 mi (10,584.03 km) |
| South San Francisco to Mottola | 6,451.04 mi (10,381.94 km) |
