| Irthlingborough to Ayr | 271.23 mi (436.50 km) |
| Irthlingborough to Bacup | 115.89 mi (186.51 km) |
| Irthlingborough to Baguley | 101.60 mi (163.51 km) |
| Irthlingborough to Baildon | 115.78 mi (186.32 km) |
| Irthlingborough to Bailleston | 281.69 mi (453.33 km) |
| Irthlingborough to Balderton | 50.94 mi (81.97 km) |
| Irthlingborough to Baldock | 29.25 mi (47.07 km) |
| Irthlingborough to Balham | 63.95 mi (102.91 km) |
| Irthlingborough to Bamber Bridge | 129.00 mi (207.61 km) |
| Irthlingborough to Banbridge | 271.41 mi (436.79 km) |
| Irthlingborough to Banbury | 35.57 mi (57.25 km) |
| Irthlingborough to Bangor | 263.04 mi (423.32 km) |
| Irthlingborough to Bangor | 159.58 mi (256.82 km) |
| Irthlingborough to Banstead | 71.41 mi (114.92 km) |
| Irthlingborough to Bargoed | 119.96 mi (193.06 km) |
