| San Mateo to Sacramento (California) | 83.84 mi (134.93 km) |
| San Mateo to Saddlebrooke (Arizona) | 732.46 mi (1,178.78 km) |
| San Mateo to Safety Harbor (Florida) | 2,374.75 mi (3,821.79 km) |
| San Mateo to Saginaw (Michigan) | 2,037.57 mi (3,279.16 km) |
| San Mateo to Saginaw (Texas) | 1,440.46 mi (2,318.19 km) |
| San Mateo to Sahuarita (Arizona) | 751.35 mi (1,209.19 km) |
| San Mateo to Saks (Alabama) | 2,051.64 mi (3,301.79 km) |
| San Mateo to Salem (Massachusetts) | 2,699.50 mi (4,344.42 km) |
| San Mateo to Salem (Ohio) | 2,210.44 mi (3,557.36 km) |
| San Mateo to Salem (Oregon) | 510.63 mi (821.78 km) |
| San Mateo to Salem (Virginia) | 2,298.85 mi (3,699.63 km) |
| San Mateo to Salem Lakes (Wisconsin) | 1,827.64 mi (2,941.30 km) |
| San Mateo to Salida (California) | 68.05 mi (109.52 km) |
| San Mateo to Salina (Kansas) | 1,340.09 mi (2,156.67 km) |
| San Mateo to Salinas (California) | 70.48 mi (113.43 km) |
