| Webster Groves to Devnya | 5,580.90 mi (8,981.60 km) |
| Webster Groves to Dimitrovgrad | 5,567.39 mi (8,959.84 km) |
| Webster Groves to Dobrich | 5,572.97 mi (8,968.82 km) |
| Webster Groves to Dospat | 5,533.74 mi (8,905.69 km) |
| Webster Groves to Dupnitsa | 5,465.41 mi (8,795.74 km) |
| Webster Groves to Elhovo | 5,596.83 mi (9,007.23 km) |
| Webster Groves to Etropole | 5,471.12 mi (8,804.92 km) |
| Webster Groves to Gabrovo | 5,518.17 mi (8,880.64 km) |
| Webster Groves to Gorna Oryahovitsa | 5,518.52 mi (8,881.20 km) |
| Webster Groves to Gotse Delchev | 5,521.51 mi (8,886.02 km) |
| Webster Groves to Harmanli | 5,584.01 mi (8,986.60 km) |
| Webster Groves to Haskovo | 5,571.83 mi (8,966.99 km) |
| Webster Groves to Ihtiman | 5,483.19 mi (8,824.34 km) |
| Webster Groves to Isperih | 5,530.48 mi (8,900.45 km) |
| Webster Groves to Kardzhali | 5,578.20 mi (8,977.25 km) |
