| Irthlingborough to Alesd | 1,085.43 mi (1,746.83 km) |
| Irthlingborough to Alexandria | 1,318.54 mi (2,121.98 km) |
| Irthlingborough to Arad | 1,070.92 mi (1,723.48 km) |
| Irthlingborough to Avrig | 1,213.46 mi (1,952.87 km) |
| Irthlingborough to Babadag | 1,423.78 mi (2,291.36 km) |
| Irthlingborough to Bacau | 1,289.49 mi (2,075.23 km) |
| Irthlingborough to Baia Mare | 1,115.89 mi (1,795.85 km) |
| Irthlingborough to Baia-Sprie | 1,121.18 mi (1,804.37 km) |
| Irthlingborough to Baicoi | 1,299.09 mi (2,090.69 km) |
| Irthlingborough to Bailesti | 1,235.97 mi (1,989.10 km) |
| Irthlingborough to Bals | 1,253.32 mi (2,017.02 km) |
| Irthlingborough to Baraolt | 1,251.42 mi (2,013.97 km) |
| Irthlingborough to Barlad | 1,332.97 mi (2,145.21 km) |
| Irthlingborough to Beclean | 1,155.83 mi (1,860.13 km) |
| Irthlingborough to Beius | 1,097.00 mi (1,765.45 km) |
