| Walla Walla to Devnya | 5,923.51 mi (9,532.97 km) |
| Walla Walla to Dimitrovgrad | 5,957.44 mi (9,587.57 km) |
| Walla Walla to Dobrich | 5,906.43 mi (9,505.49 km) |
| Walla Walla to Dospat | 5,951.85 mi (9,578.58 km) |
| Walla Walla to Dupnitsa | 5,890.38 mi (9,479.65 km) |
| Walla Walla to Elhovo | 5,970.11 mi (9,607.96 km) |
| Walla Walla to Etropole | 5,874.21 mi (9,453.62 km) |
| Walla Walla to Gabrovo | 5,900.41 mi (9,495.79 km) |
| Walla Walla to Gorna Oryahovitsa | 5,891.22 mi (9,481.00 km) |
| Walla Walla to Gotse Delchev | 5,947.54 mi (9,571.64 km) |
| Walla Walla to Harmanli | 5,971.08 mi (9,609.53 km) |
| Walla Walla to Haskovo | 5,964.09 mi (9,598.28 km) |
| Walla Walla to Ihtiman | 5,894.97 mi (9,487.04 km) |
| Walla Walla to Isperih | 5,877.27 mi (9,458.55 km) |
| Walla Walla to Kardzhali | 5,977.71 mi (9,620.20 km) |
