| Eureka to Devnya | 6,370.85 mi (10,252.89 km) |
| Eureka to Dimitrovgrad | 6,408.69 mi (10,313.79 km) |
| Eureka to Dobrich | 6,353.04 mi (10,224.23 km) |
| Eureka to Dospat | 6,405.38 mi (10,308.46 km) |
| Eureka to Dupnitsa | 6,344.76 mi (10,210.91 km) |
| Eureka to Elhovo | 6,419.87 mi (10,331.78 km) |
| Eureka to Etropole | 6,327.00 mi (10,182.33 km) |
| Eureka to Gabrovo | 6,351.36 mi (10,221.53 km) |
| Eureka to Gorna Oryahovitsa | 6,341.43 mi (10,205.54 km) |
| Eureka to Gotse Delchev | 6,401.69 mi (10,302.52 km) |
| Eureka to Harmanli | 6,422.01 mi (10,335.22 km) |
| Eureka to Haskovo | 6,415.49 mi (10,324.74 km) |
| Eureka to Ihtiman | 6,348.33 mi (10,216.65 km) |
| Eureka to Isperih | 6,325.30 mi (10,179.59 km) |
| Eureka to Kardzhali | 6,429.62 mi (10,347.48 km) |
