| Irthlingborough to Torun | 804.47 mi (1,294.66 km) |
| Irthlingborough to Trzcianka | 715.43 mi (1,151.37 km) |
| Irthlingborough to Trzebiatow | 666.73 mi (1,073.01 km) |
| Irthlingborough to Trzebinia | 878.96 mi (1,414.55 km) |
| Irthlingborough to Trzebnica | 756.36 mi (1,217.24 km) |
| Irthlingborough to Tuchola | 771.27 mi (1,241.23 km) |
| Irthlingborough to Turek | 807.90 mi (1,300.19 km) |
| Irthlingborough to Tychy | 858.90 mi (1,382.27 km) |
| Irthlingborough to Ustka | 733.23 mi (1,180.03 km) |
| Irthlingborough to Ustron | 860.45 mi (1,384.76 km) |
| Irthlingborough to Ustrzyki Dolne | 1,026.38 mi (1,651.79 km) |
| Irthlingborough to Wabrzezno | 817.30 mi (1,315.31 km) |
| Irthlingborough to Wadowice | 885.74 mi (1,425.47 km) |
| Irthlingborough to Wagrowiec | 747.03 mi (1,202.23 km) |
| Irthlingborough to Walbrzych | 732.26 mi (1,178.46 km) |
