| Royston to Islahiye | 2,051.30 mi (3,301.25 km) |
| Royston to Isparta | 1,771.96 mi (2,851.70 km) |
| Royston to Istanbul | 1,559.26 mi (2,509.38 km) |
| Royston to Izmir | 1,607.15 mi (2,586.46 km) |
| Royston to Kadinhani | 1,815.56 mi (2,921.85 km) |
| Royston to Kadirli | 2,013.51 mi (3,240.43 km) |
| Royston to Kagithane | 1,557.18 mi (2,506.04 km) |
| Royston to Kahramanmaras | 2,037.87 mi (3,279.64 km) |
| Royston to Kahta | 2,098.69 mi (3,377.51 km) |
| Royston to Kaman | 1,826.30 mi (2,939.15 km) |
| Royston to Kangal | 1,983.08 mi (3,191.46 km) |
| Royston to Kapakli | 1,505.42 mi (2,422.73 km) |
| Royston to Karaagac | 2,052.28 mi (3,302.83 km) |
| Royston to Karaagac | 1,506.19 mi (2,423.98 km) |
| Royston to Karabuk | 1,701.75 mi (2,738.71 km) |
