| Royston to Glyka Nera | 1,504.92 mi (2,421.94 km) |
| Royston to Grevena | 1,310.56 mi (2,109.14 km) |
| Royston to Ialysos | 1,745.15 mi (2,808.54 km) |
| Royston to Ilion | 1,497.38 mi (2,409.80 km) |
| Royston to Ilioupoli | 1,504.33 mi (2,420.99 km) |
| Royston to Ioannina | 1,310.99 mi (2,109.83 km) |
| Royston to Irakleio | 1,690.40 mi (2,720.44 km) |
| Royston to Irakleio | 1,498.96 mi (2,412.34 km) |
| Royston to Kaisariani | 1,502.84 mi (2,418.59 km) |
| Royston to Kalamaria | 1,342.88 mi (2,161.16 km) |
| Royston to Kalamata | 1,493.09 mi (2,402.90 km) |
| Royston to Kallithea | 1,501.66 mi (2,416.68 km) |
| Royston to Kalymnos | 1,672.20 mi (2,691.14 km) |
| Royston to Kalyvia Thorikou | 1,515.55 mi (2,439.04 km) |
| Royston to Kamatero | 1,496.46 mi (2,408.32 km) |
