| Duncan to Burley (Idaho) | 1,017.69 mi (1,637.82 km) |
| Duncan to Burlingame (California) | 1,377.45 mi (2,216.79 km) |
| Duncan to Burlington (Iowa) | 570.24 mi (917.71 km) |
| Duncan to Burlington (Kentucky) | 792.38 mi (1,275.21 km) |
| Duncan to Burlington (North Carolina) | 1,044.26 mi (1,680.58 km) |
| Duncan to Burlington (Vermont) | 1,476.52 mi (2,376.23 km) |
| Duncan to Burlington (Wisconsin) | 765.29 mi (1,231.62 km) |
| Duncan to Burnsville (Minnesota) | 747.99 mi (1,203.77 km) |
| Duncan to Burr Ridge (Illinois) | 736.18 mi (1,184.77 km) |
| Duncan to Burton (Michigan) | 964.77 mi (1,552.65 km) |
| Duncan to Burtonsville (Maryland) | 1,199.84 mi (1,930.95 km) |
| Duncan to Butler (Pennsylvania) | 1,075.16 mi (1,730.30 km) |
| Duncan to Butte (Montana) | 1,101.32 mi (1,772.41 km) |
| Duncan to Byram (Mississippi) | 469.46 mi (755.51 km) |
| Duncan to Cabot (Arkansas) | 335.88 mi (540.54 km) |
