| Barreiro to Glyka Nera | 1,774.99 mi (2,856.58 km) |
| Barreiro to Grevena | 1,623.65 mi (2,613.01 km) |
| Barreiro to Ialysos | 2,030.86 mi (3,268.35 km) |
| Barreiro to Ilion | 1,766.50 mi (2,842.91 km) |
| Barreiro to Ilioupoli | 1,770.58 mi (2,849.48 km) |
| Barreiro to Ioannina | 1,596.81 mi (2,569.81 km) |
| Barreiro to Irakleio | 1,890.08 mi (3,041.79 km) |
| Barreiro to Irakleio | 1,769.82 mi (2,848.26 km) |
| Barreiro to Kaisariani | 1,770.53 mi (2,849.39 km) |
| Barreiro to Kalamaria | 1,699.62 mi (2,735.27 km) |
| Barreiro to Kalamata | 1,696.47 mi (2,730.20 km) |
| Barreiro to Kallithea | 1,767.68 mi (2,844.81 km) |
| Barreiro to Kalymnos | 1,958.21 mi (3,151.43 km) |
| Barreiro to Kalyvia Thorikou | 1,780.92 mi (2,866.11 km) |
| Barreiro to Kamatero | 1,766.77 mi (2,843.35 km) |
