| Didcot to Karlovo | 1,362.12 mi (2,192.12 km) |
| Didcot to Karnobat | 1,452.55 mi (2,337.65 km) |
| Didcot to Kavarna | 1,478.27 mi (2,379.05 km) |
| Didcot to Kazanlak | 1,387.61 mi (2,233.15 km) |
| Didcot to Knezha | 1,298.14 mi (2,089.15 km) |
| Didcot to Kostinbrod | 1,289.98 mi (2,076.03 km) |
| Didcot to Kozloduy | 1,272.66 mi (2,048.15 km) |
| Didcot to Kyustendil | 1,290.76 mi (2,077.28 km) |
| Didcot to Levski | 1,346.84 mi (2,167.52 km) |
| Didcot to Lom | 1,250.53 mi (2,012.53 km) |
| Didcot to Lovech | 1,338.70 mi (2,154.43 km) |
| Didcot to Lukovit | 1,313.40 mi (2,113.71 km) |
| Didcot to Lyaskovets | 1,381.48 mi (2,223.28 km) |
| Didcot to Mezdra | 1,296.20 mi (2,086.03 km) |
| Didcot to Momchilgrad | 1,433.32 mi (2,306.71 km) |
