| Thetford to Glyka Nera | 1,490.75 mi (2,399.14 km) |
| Thetford to Grevena | 1,296.37 mi (2,086.30 km) |
| Thetford to Ialysos | 1,728.49 mi (2,781.73 km) |
| Thetford to Ilion | 1,483.32 mi (2,387.17 km) |
| Thetford to Ilioupoli | 1,490.34 mi (2,398.47 km) |
| Thetford to Ioannina | 1,298.07 mi (2,089.04 km) |
| Thetford to Irakleio | 1,677.80 mi (2,700.16 km) |
| Thetford to Irakleio | 1,484.81 mi (2,389.56 km) |
| Thetford to Kaisariani | 1,488.80 mi (2,395.99 km) |
| Thetford to Kalamaria | 1,326.32 mi (2,134.50 km) |
| Thetford to Kalamata | 1,481.99 mi (2,385.03 km) |
| Thetford to Kallithea | 1,487.70 mi (2,394.22 km) |
| Thetford to Kalymnos | 1,656.01 mi (2,665.10 km) |
| Thetford to Kalyvia Thorikou | 1,501.50 mi (2,416.43 km) |
| Thetford to Kamatero | 1,482.36 mi (2,385.63 km) |
