| SeaTac to Baraboo (Wisconsin) | 1,589.74 mi (2,558.43 km) |
| SeaTac to Barberton (Ohio) | 2,038.74 mi (3,281.03 km) |
| SeaTac to Bardstown (Kentucky) | 1,965.87 mi (3,163.77 km) |
| SeaTac to Barrington (Illinois) | 1,700.23 mi (2,736.25 km) |
| SeaTac to Barstow (California) | 910.45 mi (1,465.23 km) |
| SeaTac to Bartlesville (Oklahoma) | 1,529.77 mi (2,461.92 km) |
| SeaTac to Bartlett (Illinois) | 1,701.41 mi (2,738.15 km) |
| SeaTac to Bartlett (Tennessee) | 1,865.82 mi (3,002.74 km) |
| SeaTac to Bartow (Florida) | 2,552.49 mi (4,107.83 km) |
| SeaTac to Batavia (Illinois) | 1,700.38 mi (2,736.49 km) |
| SeaTac to Batavia (New York) | 2,139.66 mi (3,443.45 km) |
| SeaTac to Batesville (Arkansas) | 1,762.47 mi (2,836.41 km) |
| SeaTac to Baton Rouge (Louisiana) | 2,023.94 mi (3,257.21 km) |
| SeaTac to Battle Creek (Michigan) | 1,831.47 mi (2,947.46 km) |
| SeaTac to Battle Ground (Washington) | 115.81 mi (186.37 km) |
