| Gretna to Ayamonte | 4,633.31 mi (7,456.59 km) |
| Gretna to Azcoitia | 4,734.48 mi (7,619.41 km) |
| Gretna to Azpeitia | 4,736.54 mi (7,622.72 km) |
| Gretna to Azuqueca de Henares | 4,755.35 mi (7,652.99 km) |
| Gretna to Badajoz | 4,613.73 mi (7,425.08 km) |
| Gretna to Badalona | 4,995.31 mi (8,039.17 km) |
| Gretna to Baena | 4,779.92 mi (7,692.53 km) |
| Gretna to Baeza | 4,813.09 mi (7,745.92 km) |
| Gretna to Bailen | 4,795.36 mi (7,717.39 km) |
| Gretna to Balaguer | 4,917.92 mi (7,914.62 km) |
| Gretna to Banolas | 5,000.49 mi (8,047.52 km) |
| Gretna to Baranain | 4,774.41 mi (7,683.67 km) |
| Gretna to Barbadanes | 4,488.47 mi (7,223.50 km) |
| Gretna to Barbastro | 4,879.12 mi (7,852.19 km) |
| Gretna to Barcelona | 4,994.11 mi (8,037.25 km) |
