| Duluth to Bucak | 5,625.49 mi (9,053.36 km) |
| Duluth to Buharkent | 5,537.73 mi (8,912.11 km) |
| Duluth to Bulancak | 5,653.26 mi (9,098.05 km) |
| Duluth to Bulanik | 5,871.22 mi (9,448.82 km) |
| Duluth to Buldan | 5,535.98 mi (8,909.30 km) |
| Duluth to Bunyan | 5,707.46 mi (9,185.26 km) |
| Duluth to Burdur | 5,600.92 mi (9,013.81 km) |
| Duluth to Burhaniye | 5,394.68 mi (8,681.90 km) |
| Duluth to Bursa | 5,424.47 mi (8,729.83 km) |
| Duluth to Buyukcekmece | 5,363.35 mi (8,631.48 km) |
| Duluth to Buyukorhan | 5,444.24 mi (8,761.66 km) |
| Duluth to Buyukyoncali | 5,323.10 mi (8,566.70 km) |
| Duluth to Caglayancerit | 5,813.23 mi (9,355.49 km) |
| Duluth to Cal | 5,552.20 mi (8,935.40 km) |
| Duluth to Caldiran | 5,911.12 mi (9,513.03 km) |
