| Dumbarton to Ayamonte | 1,302.20 mi (2,095.68 km) |
| Dumbarton to Azcoitia | 888.03 mi (1,429.14 km) |
| Dumbarton to Azpeitia | 888.07 mi (1,429.21 km) |
| Dumbarton to Azuqueca de Henares | 1,064.65 mi (1,713.39 km) |
| Dumbarton to Badajoz | 1,184.58 mi (1,906.40 km) |
| Dumbarton to Badalona | 1,048.63 mi (1,687.61 km) |
| Dumbarton to Baena | 1,266.76 mi (2,038.66 km) |
| Dumbarton to Baeza | 1,242.42 mi (1,999.48 km) |
| Dumbarton to Bailen | 1,235.02 mi (1,987.58 km) |
| Dumbarton to Balaguer | 1,007.58 mi (1,621.55 km) |
| Dumbarton to Banolas | 1,010.32 mi (1,625.96 km) |
| Dumbarton to Baranain | 917.69 mi (1,476.87 km) |
| Dumbarton to Barbadanes | 954.83 mi (1,536.65 km) |
| Dumbarton to Barbastro | 984.05 mi (1,583.67 km) |
| Dumbarton to Barcelona | 1,051.29 mi (1,691.89 km) |
