| Southborough to Glyka Nera | 1,463.66 mi (2,355.53 km) |
| Southborough to Grevena | 1,269.53 mi (2,043.11 km) |
| Southborough to Ialysos | 1,706.89 mi (2,746.98 km) |
| Southborough to Ilion | 1,455.99 mi (2,343.19 km) |
| Southborough to Ilioupoli | 1,462.86 mi (2,354.24 km) |
| Southborough to Ioannina | 1,268.42 mi (2,041.32 km) |
| Southborough to Irakleio | 1,647.10 mi (2,650.76 km) |
| Southborough to Irakleio | 1,457.68 mi (2,345.90 km) |
| Southborough to Kaisariani | 1,461.42 mi (2,351.94 km) |
| Southborough to Kalamaria | 1,304.89 mi (2,100.02 km) |
| Southborough to Kalamata | 1,448.22 mi (2,330.68 km) |
| Southborough to Kallithea | 1,460.14 mi (2,349.87 km) |
| Southborough to Kalymnos | 1,633.36 mi (2,628.65 km) |
| Southborough to Kalyvia Thorikou | 1,474.13 mi (2,372.39 km) |
| Southborough to Kamatero | 1,455.13 mi (2,341.80 km) |
