| Irthlingborough to Barberton (Ohio) | 3,712.40 mi (5,974.53 km) |
| Irthlingborough to Bardstown (Kentucky) | 4,013.05 mi (6,458.39 km) |
| Irthlingborough to Barrington (Illinois) | 3,909.12 mi (6,291.12 km) |
| Irthlingborough to Barstow (California) | 5,302.82 mi (8,534.07 km) |
| Irthlingborough to Bartlesville (Oklahoma) | 4,467.97 mi (7,190.50 km) |
| Irthlingborough to Bartlett (Illinois) | 3,920.15 mi (6,308.87 km) |
| Irthlingborough to Bartlett (Tennessee) | 4,310.34 mi (6,936.83 km) |
| Irthlingborough to Bartow (Florida) | 4,358.29 mi (7,013.98 km) |
| Irthlingborough to Batavia (Illinois) | 3,930.30 mi (6,325.21 km) |
| Irthlingborough to Batavia (New York) | 3,489.51 mi (5,615.82 km) |
| Irthlingborough to Batesville (Arkansas) | 4,353.28 mi (7,005.92 km) |
| Irthlingborough to Baton Rouge (Louisiana) | 4,605.44 mi (7,411.74 km) |
| Irthlingborough to Battle Creek (Michigan) | 3,792.85 mi (6,104.01 km) |
| Irthlingborough to Battle Ground (Washington) | 4,837.64 mi (7,785.42 km) |
| Irthlingborough to Bay City (Michigan) | 3,682.97 mi (5,927.18 km) |
