| San Luis to Brown Deer (Wisconsin) | 1,625.15 mi (2,615.42 km) |
| San Luis to Brownsburg (Indiana) | 1,651.42 mi (2,657.70 km) |
| San Luis to Brownsville (Florida) | 2,120.44 mi (3,412.53 km) |
| San Luis to Brownsville (Texas) | 1,130.79 mi (1,819.84 km) |
| San Luis to Brownwood (Texas) | 921.53 mi (1,483.06 km) |
| San Luis to Brunswick (Georgia) | 1,945.55 mi (3,131.05 km) |
| San Luis to Brunswick (Ohio) | 1,902.72 mi (3,062.13 km) |
| San Luis to Brushy Creek (Texas) | 1,007.93 mi (1,622.11 km) |
| San Luis to Bryan (Texas) | 1,084.84 mi (1,745.88 km) |
| San Luis to Bryant (Arkansas) | 1,285.06 mi (2,068.10 km) |
| San Luis to Bryn Mawr-Skyway (Washington) | 1,109.37 mi (1,785.36 km) |
| San Luis to Buckeye (Arizona) | 136.25 mi (219.28 km) |
| San Luis to Buckhall (Virginia) | 2,121.81 mi (3,414.73 km) |
| San Luis to Bucyrus (Ohio) | 1,839.04 mi (2,959.66 km) |
| San Luis to Buda (Texas) | 1,008.33 mi (1,622.75 km) |
