| Irthlingborough to Brighton | 105.86 mi (170.36 km) |
| Irthlingborough to Brimington | 72.23 mi (116.24 km) |
| Irthlingborough to Brislington | 102.84 mi (165.51 km) |
| Irthlingborough to Bristol | 103.78 mi (167.01 km) |
| Irthlingborough to Brixham | 182.89 mi (294.33 km) |
| Irthlingborough to Brixton | 63.50 mi (102.20 km) |
| Irthlingborough to Broadstairs | 110.13 mi (177.24 km) |
| Irthlingborough to Broadstone | 123.25 mi (198.35 km) |
| Irthlingborough to Broadwater | 103.86 mi (167.15 km) |
| Irthlingborough to Brockworth | 72.97 mi (117.44 km) |
| Irthlingborough to Bromborough | 120.94 mi (194.63 km) |
| Irthlingborough to Bromley | 68.91 mi (110.90 km) |
| Irthlingborough to Bromsgrove | 60.97 mi (98.12 km) |
| Irthlingborough to Broughton Astley | 29.43 mi (47.37 km) |
| Irthlingborough to Broughty Ferry | 300.26 mi (483.23 km) |
