| Irthlingborough to Aleksandrow Lodzki | 843.96 mi (1,358.22 km) |
| Irthlingborough to Andrychow | 879.69 mi (1,415.72 km) |
| Irthlingborough to Augustow | 980.16 mi (1,577.41 km) |
| Irthlingborough to Banino | 794.67 mi (1,278.89 km) |
| Irthlingborough to Barlinek | 663.00 mi (1,066.99 km) |
| Irthlingborough to Bartoszyce | 890.90 mi (1,433.77 km) |
| Irthlingborough to Bedzin | 860.09 mi (1,384.17 km) |
| Irthlingborough to Belchatow | 852.70 mi (1,372.29 km) |
| Irthlingborough to Biala Podlaska | 1,001.11 mi (1,611.14 km) |
| Irthlingborough to Bialogard | 695.55 mi (1,119.39 km) |
| Irthlingborough to Bialy Kamien | 730.75 mi (1,176.04 km) |
| Irthlingborough to Bialystok | 991.13 mi (1,595.08 km) |
| Irthlingborough to Bielawa | 747.54 mi (1,203.04 km) |
| Irthlingborough to Bielsk Podlaski | 996.51 mi (1,603.72 km) |
| Irthlingborough to Bielsko-Biala | 867.89 mi (1,396.74 km) |
