| Penafiel to Glyka Nera | 1,715.15 mi (2,760.27 km) |
| Penafiel to Grevena | 1,551.96 mi (2,497.65 km) |
| Penafiel to Ialysos | 1,974.50 mi (3,177.65 km) |
| Penafiel to Ilion | 1,706.59 mi (2,746.48 km) |
| Penafiel to Ilioupoli | 1,711.27 mi (2,754.03 km) |
| Penafiel to Ioannina | 1,528.80 mi (2,460.37 km) |
| Penafiel to Irakleio | 1,845.42 mi (2,969.92 km) |
| Penafiel to Irakleio | 1,709.70 mi (2,751.50 km) |
| Penafiel to Kaisariani | 1,710.97 mi (2,753.54 km) |
| Penafiel to Kalamaria | 1,623.06 mi (2,612.07 km) |
| Penafiel to Kalamata | 1,645.86 mi (2,648.75 km) |
| Penafiel to Kallithea | 1,708.33 mi (2,749.28 km) |
| Penafiel to Kalymnos | 1,900.21 mi (3,058.10 km) |
| Penafiel to Kalyvia Thorikou | 1,722.04 mi (2,771.36 km) |
| Penafiel to Kamatero | 1,706.66 mi (2,746.61 km) |
