| Somersworth to Devnya | 4,627.25 mi (7,446.83 km) |
| Somersworth to Dimitrovgrad | 4,598.54 mi (7,400.63 km) |
| Somersworth to Dobrich | 4,622.67 mi (7,439.47 km) |
| Somersworth to Dospat | 4,557.02 mi (7,333.82 km) |
| Somersworth to Dupnitsa | 4,488.44 mi (7,223.44 km) |
| Somersworth to Elhovo | 4,632.53 mi (7,455.34 km) |
| Somersworth to Etropole | 4,500.86 mi (7,243.43 km) |
| Somersworth to Gabrovo | 4,553.26 mi (7,327.76 km) |
| Somersworth to Gorna Oryahovitsa | 4,556.72 mi (7,333.33 km) |
| Somersworth to Gotse Delchev | 4,542.71 mi (7,310.78 km) |
| Somersworth to Harmanli | 4,615.64 mi (7,428.15 km) |
| Somersworth to Haskovo | 4,602.14 mi (7,406.44 km) |
| Somersworth to Ihtiman | 4,509.83 mi (7,257.87 km) |
| Somersworth to Isperih | 4,576.98 mi (7,365.94 km) |
| Somersworth to Kardzhali | 4,606.06 mi (7,412.74 km) |
