| SeaTac to Brown Deer (Wisconsin) | 1,679.59 mi (2,703.03 km) |
| SeaTac to Brownsburg (Indiana) | 1,852.85 mi (2,981.87 km) |
| SeaTac to Brownsville (Florida) | 2,721.51 mi (4,379.84 km) |
| SeaTac to Brownsville (Texas) | 2,004.55 mi (3,226.01 km) |
| SeaTac to Brownwood (Texas) | 1,638.77 mi (2,637.35 km) |
| SeaTac to Brunswick (Georgia) | 2,419.37 mi (3,893.60 km) |
| SeaTac to Brunswick (Ohio) | 2,021.41 mi (3,253.14 km) |
| SeaTac to Brushy Creek (Texas) | 1,749.39 mi (2,815.37 km) |
| SeaTac to Bryan (Texas) | 1,795.35 mi (2,889.33 km) |
| SeaTac to Bryant (Arkansas) | 1,772.74 mi (2,852.94 km) |
| SeaTac to Bryn Mawr-Skyway (Washington) | 4.41 mi (7.09 km) |
| SeaTac to Buckeye (Arizona) | 1,091.28 mi (1,756.25 km) |
| SeaTac to Buckhall (Virginia) | 2,307.57 mi (3,713.67 km) |
| SeaTac to Bucyrus (Ohio) | 1,981.15 mi (3,188.35 km) |
| SeaTac to Buda (Texas) | 1,767.98 mi (2,845.29 km) |
