| Santarem to Somersworth (New Hampshire) | 3,168.09 mi (5,098.54 km) |
| Santarem to Somerton (Arizona) | 5,579.20 mi (8,978.85 km) |
| Santarem to Somerville (Massachusetts) | 3,196.65 mi (5,144.51 km) |
| Santarem to Somerville (New Jersey) | 3,410.01 mi (5,487.88 km) |
| Santarem to Sonoma (California) | 5,634.99 mi (9,068.64 km) |
| Santarem to Soquel (California) | 5,677.12 mi (9,136.43 km) |
| Santarem to South Bend (Indiana) | 3,936.84 mi (6,335.73 km) |
| Santarem to South Bradenton (Florida) | 4,225.99 mi (6,801.07 km) |
| Santarem to South Burlington (Vermont) | 3,254.31 mi (5,237.31 km) |
| Santarem to South Charleston (West Virginia) | 3,818.88 mi (6,145.89 km) |
| Santarem to South Daytona (Florida) | 4,082.89 mi (6,570.78 km) |
| Santarem to South El Monte (California) | 5,656.91 mi (9,103.92 km) |
| Santarem to South Elgin (Illinois) | 4,021.98 mi (6,472.75 km) |
| Santarem to South Euclid (Ohio) | 3,718.19 mi (5,983.84 km) |
| Santarem to South Farmingdale (New York) | 3,349.47 mi (5,390.45 km) |
