| Blackburn to Barking | 186.55 mi (300.22 km) |
| Blackburn to Barnet | 173.93 mi (279.91 km) |
| Blackburn to Barnoldswick | 16.58 mi (26.68 km) |
| Blackburn to Barnsley | 43.19 mi (69.50 km) |
| Blackburn to Barnstaple | 195.96 mi (315.36 km) |
| Blackburn to Barrhead | 160.91 mi (258.96 km) |
| Blackburn to Barri | 165.23 mi (265.91 km) |
| Blackburn to Barrow in Furness | 39.30 mi (63.25 km) |
| Blackburn to Barton upon Humber | 83.20 mi (133.90 km) |
| Blackburn to Barton upon Irwell | 19.45 mi (31.30 km) |
| Blackburn to Barwell | 94.12 mi (151.47 km) |
| Blackburn to Basford | 75.90 mi (122.15 km) |
| Blackburn to Basildon | 194.77 mi (313.45 km) |
| Blackburn to Basingstoke | 181.18 mi (291.59 km) |
| Blackburn to Bath | 163.69 mi (263.44 km) |
