| Irthlingborough to Zottegem | 214.50 mi (345.20 km) |
| Irthlingborough to Zulte | 198.95 mi (320.18 km) |
| Irthlingborough to Zwevegem | 199.54 mi (321.13 km) |
| Irthlingborough to Zwijndrecht | 224.88 mi (361.91 km) |
| Irthlingborough to Asenovgrad | 1,381.86 mi (2,223.89 km) |
| Irthlingborough to Aytos | 1,448.00 mi (2,330.33 km) |
| Irthlingborough to Balchik | 1,455.67 mi (2,342.68 km) |
| Irthlingborough to Bankya | 1,283.57 mi (2,065.71 km) |
| Irthlingborough to Bansko | 1,335.90 mi (2,149.93 km) |
| Irthlingborough to Berkovitsa | 1,259.83 mi (2,027.50 km) |
| Irthlingborough to Blagoevgrad | 1,312.56 mi (2,112.36 km) |
| Irthlingborough to Botevgrad | 1,300.60 mi (2,093.12 km) |
| Irthlingborough to Burgas | 1,465.14 mi (2,357.92 km) |
| Irthlingborough to Byala Slatina | 1,282.47 mi (2,063.94 km) |
| Irthlingborough to Chirpan | 1,391.95 mi (2,240.13 km) |
