| Felton to Devnya | 1,509.09 mi (2,428.64 km) |
| Felton to Dimitrovgrad | 1,472.21 mi (2,369.29 km) |
| Felton to Dobrich | 1,507.41 mi (2,425.94 km) |
| Felton to Dospat | 1,429.69 mi (2,300.86 km) |
| Felton to Dupnitsa | 1,361.10 mi (2,190.47 km) |
| Felton to Elhovo | 1,507.74 mi (2,426.47 km) |
| Felton to Etropole | 1,374.37 mi (2,211.83 km) |
| Felton to Gabrovo | 1,428.55 mi (2,299.03 km) |
| Felton to Gorna Oryahovitsa | 1,433.59 mi (2,307.15 km) |
| Felton to Gotse Delchev | 1,415.52 mi (2,278.05 km) |
| Felton to Harmanli | 1,489.41 mi (2,396.97 km) |
| Felton to Haskovo | 1,475.58 mi (2,374.72 km) |
| Felton to Ihtiman | 1,382.69 mi (2,225.22 km) |
| Felton to Isperih | 1,459.52 mi (2,348.87 km) |
| Felton to Kardzhali | 1,478.99 mi (2,380.21 km) |
