| Boadilla del Monte to Security-Widefield (Colorado) | 5,036.89 mi (8,106.09 km) |
| Boadilla del Monte to Sedalia (Missouri) | 4,537.37 mi (7,302.19 km) |
| Boadilla del Monte to Sedro-Woolley (Washington) | 5,234.56 mi (8,424.22 km) |
| Boadilla del Monte to Seguin (Texas) | 5,124.53 mi (8,247.13 km) |
| Boadilla del Monte to Selden (New York) | 3,525.88 mi (5,674.36 km) |
| Boadilla del Monte to Selma (Alabama) | 4,484.77 mi (7,217.54 km) |
| Boadilla del Monte to Selma (California) | 5,739.63 mi (9,237.05 km) |
| Boadilla del Monte to Selma (Texas) | 5,141.01 mi (8,273.66 km) |
| Boadilla del Monte to Seminole (Florida) | 4,448.78 mi (7,159.62 km) |
| Boadilla del Monte to Seven Hills (Ohio) | 3,916.48 mi (6,302.96 km) |
| Boadilla del Monte to Seven Oaks (South Carolina) | 4,136.61 mi (6,657.22 km) |
| Boadilla del Monte to Severn (Maryland) | 3,751.60 mi (6,037.62 km) |
| Boadilla del Monte to Severna Park (Maryland) | 3,747.00 mi (6,030.21 km) |
| Boadilla del Monte to Sevierville (Tennessee) | 4,189.53 mi (6,742.40 km) |
| Boadilla del Monte to Seymour (Indiana) | 4,192.40 mi (6,747.02 km) |
