| Clarkston to Devnya | 5,597.87 mi (9,008.89 km) |
| Clarkston to Dimitrovgrad | 5,568.99 mi (8,962.42 km) |
| Clarkston to Dobrich | 5,593.19 mi (9,001.37 km) |
| Clarkston to Dospat | 5,526.96 mi (8,894.78 km) |
| Clarkston to Dupnitsa | 5,458.39 mi (8,784.43 km) |
| Clarkston to Elhovo | 5,603.14 mi (9,017.39 km) |
| Clarkston to Etropole | 5,471.28 mi (8,805.17 km) |
| Clarkston to Gabrovo | 5,523.87 mi (8,889.81 km) |
| Clarkston to Gorna Oryahovitsa | 5,527.39 mi (8,895.47 km) |
| Clarkston to Gotse Delchev | 5,512.44 mi (8,871.42 km) |
| Clarkston to Harmanli | 5,586.11 mi (8,989.97 km) |
| Clarkston to Haskovo | 5,572.56 mi (8,968.16 km) |
| Clarkston to Ihtiman | 5,480.06 mi (8,819.30 km) |
| Clarkston to Isperih | 5,547.59 mi (8,927.98 km) |
| Clarkston to Kardzhali | 5,576.32 mi (8,974.22 km) |
