| Didcot to Islahiye | 2,093.95 mi (3,369.88 km) |
| Didcot to Isparta | 1,810.11 mi (2,913.08 km) |
| Didcot to Istanbul | 1,600.59 mi (2,575.90 km) |
| Didcot to Izmir | 1,642.56 mi (2,643.44 km) |
| Didcot to Kadinhani | 1,855.92 mi (2,986.82 km) |
| Didcot to Kadirli | 2,056.12 mi (3,309.00 km) |
| Didcot to Kagithane | 1,598.62 mi (2,572.72 km) |
| Didcot to Kahramanmaras | 2,081.37 mi (3,349.65 km) |
| Didcot to Kahta | 2,143.63 mi (3,449.85 km) |
| Didcot to Kaman | 1,869.41 mi (3,008.52 km) |
| Didcot to Kangal | 2,028.75 mi (3,264.96 km) |
| Didcot to Kapakli | 1,546.33 mi (2,488.57 km) |
| Didcot to Karaagac | 2,094.01 mi (3,369.98 km) |
| Didcot to Karaagac | 1,547.03 mi (2,489.71 km) |
| Didcot to Karabuk | 1,746.42 mi (2,810.59 km) |
