| Irthlingborough to Bahce | 2,070.46 mi (3,332.08 km) |
| Irthlingborough to Bahcesaray | 2,285.80 mi (3,678.64 km) |
| Irthlingborough to Balikesir | 1,608.95 mi (2,589.35 km) |
| Irthlingborough to Balya | 1,591.74 mi (2,561.65 km) |
| Irthlingborough to Banaz | 1,724.59 mi (2,775.45 km) |
| Irthlingborough to Bandirma | 1,579.22 mi (2,541.50 km) |
| Irthlingborough to Bartin | 1,700.41 mi (2,736.55 km) |
| Irthlingborough to Baskale | 2,339.94 mi (3,765.77 km) |
| Irthlingborough to Baskil | 2,100.34 mi (3,380.18 km) |
| Irthlingborough to Basmakci | 1,774.86 mi (2,856.36 km) |
| Irthlingborough to Batman | 2,226.61 mi (3,583.38 km) |
| Irthlingborough to Battalgazi | 2,087.93 mi (3,360.20 km) |
| Irthlingborough to Bayat | 1,821.38 mi (2,931.23 km) |
| Irthlingborough to Bayburt | 2,086.03 mi (3,357.14 km) |
| Irthlingborough to Bayindir | 1,667.33 mi (2,683.31 km) |
