| Portland to Ayamonte | 5,447.47 mi (8,766.86 km) |
| Portland to Azcoitia | 5,298.15 mi (8,526.55 km) |
| Portland to Azpeitia | 5,299.42 mi (8,528.60 km) |
| Portland to Azuqueca de Henares | 5,408.91 mi (8,704.80 km) |
| Portland to Badajoz | 5,373.76 mi (8,648.23 km) |
| Portland to Badalona | 5,534.25 mi (8,906.52 km) |
| Portland to Baena | 5,532.86 mi (8,904.29 km) |
| Portland to Baeza | 5,541.98 mi (8,918.95 km) |
| Portland to Bailen | 5,526.42 mi (8,893.91 km) |
| Portland to Balaguer | 5,470.87 mi (8,804.51 km) |
| Portland to Banolas | 5,511.67 mi (8,870.18 km) |
| Portland to Baranain | 5,338.87 mi (8,592.08 km) |
| Portland to Barbadanes | 5,162.83 mi (8,308.78 km) |
| Portland to Barbastro | 5,436.38 mi (8,749.01 km) |
| Portland to Barcelona | 5,535.40 mi (8,908.37 km) |
