| SeaTac to Bicaz | 5,644.40 mi (9,083.79 km) |
| SeaTac to Bistrita | 5,602.63 mi (9,016.56 km) |
| SeaTac to Blaj | 5,653.44 mi (9,098.34 km) |
| SeaTac to Bocsa | 5,662.86 mi (9,113.50 km) |
| SeaTac to Boldesti-Scaeni | 5,764.70 mi (9,277.39 km) |
| SeaTac to Bolintin Vale | 5,797.49 mi (9,330.15 km) |
| SeaTac to Borsa | 5,572.04 mi (8,967.33 km) |
| SeaTac to Botosani | 5,599.93 mi (9,012.22 km) |
| SeaTac to Brad | 5,635.61 mi (9,069.64 km) |
| SeaTac to Bragadiru | 5,806.27 mi (9,344.29 km) |
| SeaTac to Braila | 5,781.85 mi (9,304.98 km) |
| SeaTac to Brasov | 5,716.43 mi (9,199.71 km) |
| SeaTac to Breaza | 5,748.12 mi (9,250.70 km) |
| SeaTac to Bucharest | 5,804.56 mi (9,341.54 km) |
| SeaTac to Buftea | 5,792.98 mi (9,322.90 km) |
