| SeaTac to Bonham (Texas) | 1,659.54 mi (2,670.76 km) |
| SeaTac to Bonita (California) | 1,057.84 mi (1,702.43 km) |
| SeaTac to Bonita Springs (Florida) | 2,627.27 mi (4,228.18 km) |
| SeaTac to Bonney Lake (Washington) | 19.30 mi (31.05 km) |
| SeaTac to Boone (Iowa) | 1,434.65 mi (2,308.85 km) |
| SeaTac to Boone (North Carolina) | 2,201.72 mi (3,543.33 km) |
| SeaTac to Borger (Texas) | 1,345.71 mi (2,165.71 km) |
| SeaTac to Bossier City (Louisiana) | 1,816.62 mi (2,923.57 km) |
| SeaTac to Boston (Massachusetts) | 2,486.21 mi (4,001.17 km) |
| SeaTac to Bostonia (California) | 1,048.65 mi (1,687.64 km) |
| SeaTac to Bothell (Washington) | 23.16 mi (37.27 km) |
| SeaTac to Bothell East (Washington) | 25.57 mi (41.15 km) |
| SeaTac to Bothell West (Washington) | 25.10 mi (40.40 km) |
| SeaTac to Boulder (Colorado) | 990.28 mi (1,593.70 km) |
| SeaTac to Boulder City (Nevada) | 886.54 mi (1,426.74 km) |
