| Southborough to Zottegem | 154.97 mi (249.40 km) |
| Southborough to Zulte | 138.65 mi (223.14 km) |
| Southborough to Zwevegem | 135.75 mi (218.47 km) |
| Southborough to Zwijndrecht | 176.19 mi (283.55 km) |
| Southborough to Asenovgrad | 1,319.08 mi (2,122.85 km) |
| Southborough to Aytos | 1,390.56 mi (2,237.89 km) |
| Southborough to Balchik | 1,401.58 mi (2,255.62 km) |
| Southborough to Bankya | 1,219.93 mi (1,963.29 km) |
| Southborough to Bansko | 1,270.56 mi (2,044.77 km) |
| Southborough to Berkovitsa | 1,197.67 mi (1,927.46 km) |
| Southborough to Blagoevgrad | 1,247.04 mi (2,006.91 km) |
| Southborough to Botevgrad | 1,238.57 mi (1,993.28 km) |
| Southborough to Burgas | 1,407.49 mi (2,265.13 km) |
| Southborough to Byala Slatina | 1,222.28 mi (1,967.06 km) |
| Southborough to Chirpan | 1,330.33 mi (2,140.97 km) |
