| Effingham to Devnya | 5,489.21 mi (8,834.03 km) |
| Effingham to Dimitrovgrad | 5,474.15 mi (8,809.79 km) |
| Effingham to Dobrich | 5,481.60 mi (8,821.79 km) |
| Effingham to Dospat | 5,439.68 mi (8,754.32 km) |
| Effingham to Dupnitsa | 5,371.29 mi (8,644.26 km) |
| Effingham to Elhovo | 5,504.08 mi (8,857.95 km) |
| Effingham to Etropole | 5,377.68 mi (8,654.55 km) |
| Effingham to Gabrovo | 5,425.30 mi (8,731.18 km) |
| Effingham to Gorna Oryahovitsa | 5,425.96 mi (8,732.25 km) |
| Effingham to Gotse Delchev | 5,427.24 mi (8,734.30 km) |
| Effingham to Harmanli | 5,490.83 mi (8,836.64 km) |
| Effingham to Haskovo | 5,478.51 mi (8,816.80 km) |
| Effingham to Ihtiman | 5,389.44 mi (8,673.47 km) |
| Effingham to Isperih | 5,438.77 mi (8,752.85 km) |
| Effingham to Kardzhali | 5,484.64 mi (8,826.67 km) |
