| SeaTac to Ayamonte | 5,346.12 mi (8,603.76 km) |
| SeaTac to Azcoitia | 5,187.16 mi (8,347.92 km) |
| SeaTac to Azpeitia | 5,188.39 mi (8,349.91 km) |
| SeaTac to Azuqueca de Henares | 5,300.84 mi (8,530.88 km) |
| SeaTac to Badajoz | 5,270.40 mi (8,481.89 km) |
| SeaTac to Badalona | 5,421.14 mi (8,724.48 km) |
| SeaTac to Baena | 5,428.28 mi (8,735.97 km) |
| SeaTac to Baeza | 5,436.30 mi (8,748.89 km) |
| SeaTac to Bailen | 5,420.92 mi (8,724.13 km) |
| SeaTac to Balaguer | 5,358.58 mi (8,623.80 km) |
| SeaTac to Banolas | 5,397.68 mi (8,686.72 km) |
| SeaTac to Baranain | 5,227.69 mi (8,413.15 km) |
| SeaTac to Barbadanes | 5,057.02 mi (8,138.48 km) |
| SeaTac to Barbastro | 5,324.43 mi (8,568.84 km) |
| SeaTac to Barcelona | 5,422.37 mi (8,726.45 km) |
