| Longford to Glyka Nera | 1,846.43 mi (2,971.55 km) |
| Longford to Grevena | 1,652.24 mi (2,659.02 km) |
| Longford to Ialysos | 2,088.58 mi (3,361.24 km) |
| Longford to Ilion | 1,838.78 mi (2,959.23 km) |
| Longford to Ilioupoli | 1,845.66 mi (2,970.31 km) |
| Longford to Ioannina | 1,651.29 mi (2,657.50 km) |
| Longford to Irakleio | 2,029.91 mi (3,266.83 km) |
| Longford to Irakleio | 1,840.45 mi (2,961.92 km) |
| Longford to Kaisariani | 1,844.22 mi (2,967.99 km) |
| Longford to Kalamaria | 1,686.37 mi (2,713.96 km) |
| Longford to Kalamata | 1,830.64 mi (2,946.13 km) |
| Longford to Kallithea | 1,842.95 mi (2,965.94 km) |
| Longford to Kalymnos | 2,015.35 mi (3,243.39 km) |
| Longford to Kalyvia Thorikou | 1,856.93 mi (2,988.45 km) |
| Longford to Kamatero | 1,837.91 mi (2,957.84 km) |
