| Guardamar del Segura to Devnya | 1,513.37 mi (2,435.53 km) |
| Guardamar del Segura to Dimitrovgrad | 1,409.08 mi (2,267.70 km) |
| Guardamar del Segura to Dobrich | 1,528.49 mi (2,459.87 km) |
| Guardamar del Segura to Dospat | 1,334.22 mi (2,147.22 km) |
| Guardamar del Segura to Dupnitsa | 1,283.21 mi (2,065.13 km) |
| Guardamar del Segura to Elhovo | 1,458.91 mi (2,347.89 km) |
| Guardamar del Segura to Etropole | 1,331.62 mi (2,143.04 km) |
| Guardamar del Segura to Gabrovo | 1,399.08 mi (2,251.60 km) |
| Guardamar del Segura to Gorna Oryahovitsa | 1,419.15 mi (2,283.90 km) |
| Guardamar del Segura to Gotse Delchev | 1,311.61 mi (2,110.83 km) |
| Guardamar del Segura to Harmanli | 1,424.18 mi (2,291.99 km) |
| Guardamar del Segura to Haskovo | 1,407.05 mi (2,264.44 km) |
| Guardamar del Segura to Ihtiman | 1,319.75 mi (2,123.93 km) |
| Guardamar del Segura to Isperih | 1,479.62 mi (2,381.23 km) |
| Guardamar del Segura to Kardzhali | 1,396.14 mi (2,246.87 km) |
