| Irthlingborough to Bountiful (Utah) | 4,801.13 mi (7,726.67 km) |
| Irthlingborough to Bourbonnais (Illinois) | 3,945.50 mi (6,349.67 km) |
| Irthlingborough to Bowie (Maryland) | 3,613.35 mi (5,815.12 km) |
| Irthlingborough to Bowling Green (Kentucky) | 4,092.50 mi (6,586.24 km) |
| Irthlingborough to Bowling Green (Ohio) | 3,774.87 mi (6,075.06 km) |
| Irthlingborough to Box Elder (South Dakota) | 4,343.14 mi (6,989.61 km) |
| Irthlingborough to Boynton Beach (Florida) | 4,355.20 mi (7,009.02 km) |
| Irthlingborough to Bozeman (Montana) | 4,514.85 mi (7,265.96 km) |
| Irthlingborough to Bradenton (Florida) | 4,409.68 mi (7,096.69 km) |
| Irthlingborough to Bradfordville (Florida) | 4,320.26 mi (6,952.79 km) |
| Irthlingborough to Bradley (Illinois) | 3,945.14 mi (6,349.09 km) |
| Irthlingborough to Bradley Gardens (New Jersey) | 3,457.08 mi (5,563.63 km) |
| Irthlingborough to Brainerd (Minnesota) | 3,930.15 mi (6,324.96 km) |
| Irthlingborough to Brambleton (Virginia) | 3,644.04 mi (5,864.51 km) |
| Irthlingborough to Brandermill (Virginia) | 3,720.40 mi (5,987.41 km) |
