| SeaTac to Bound Brook (New Jersey) | 2,381.69 mi (3,832.96 km) |
| SeaTac to Bountiful (Utah) | 687.18 mi (1,105.91 km) |
| SeaTac to Bourbonnais (Illinois) | 1,740.31 mi (2,800.77 km) |
| SeaTac to Bowie (Maryland) | 2,332.65 mi (3,754.04 km) |
| SeaTac to Bowling Green (Kentucky) | 1,951.65 mi (3,140.88 km) |
| SeaTac to Bowling Green (Ohio) | 1,932.03 mi (3,109.30 km) |
| SeaTac to Box Elder (South Dakota) | 951.52 mi (1,531.32 km) |
| SeaTac to Boynton Beach (Florida) | 2,694.68 mi (4,336.67 km) |
| SeaTac to Bozeman (Montana) | 547.24 mi (880.70 km) |
| SeaTac to Bradenton (Florida) | 2,537.78 mi (4,084.17 km) |
| SeaTac to Bradfordville (Florida) | 2,321.40 mi (3,735.93 km) |
| SeaTac to Bradley (Illinois) | 1,742.44 mi (2,804.19 km) |
| SeaTac to Bradley Gardens (New Jersey) | 2,375.56 mi (3,823.10 km) |
| SeaTac to Brainerd (Minnesota) | 1,321.51 mi (2,126.76 km) |
| SeaTac to Brambleton (Virginia) | 2,294.81 mi (3,693.15 km) |
