| Duluth to Bollullos par del Condado | 4,219.80 mi (6,791.12 km) |
| Duluth to Bormujos | 4,238.57 mi (6,821.32 km) |
| Duluth to Brenes | 4,239.17 mi (6,822.28 km) |
| Duluth to Brunete | 4,195.04 mi (6,751.26 km) |
| Duluth to Bueu | 3,916.95 mi (6,303.73 km) |
| Duluth to Bullas | 4,394.03 mi (7,071.50 km) |
| Duluth to Bunol | 4,369.47 mi (7,031.99 km) |
| Duluth to Burela de Cabo | 3,920.51 mi (6,309.46 km) |
| Duluth to Burgos | 4,124.64 mi (6,637.97 km) |
| Duluth to Burjasot | 4,381.30 mi (7,051.02 km) |
| Duluth to Burriana | 4,377.07 mi (7,044.21 km) |
| Duluth to Cabanaquinta | 4,016.71 mi (6,464.27 km) |
| Duluth to Cabanillas del Campo | 4,216.03 mi (6,785.04 km) |
| Duluth to Cabra | 4,303.75 mi (6,926.22 km) |
| Duluth to Caceres | 4,135.09 mi (6,654.79 km) |
