| Luton to Glyka Nera | 1,513.55 mi (2,435.83 km) |
| Luton to Grevena | 1,319.25 mi (2,123.13 km) |
| Luton to Ialysos | 1,754.93 mi (2,824.28 km) |
| Luton to Ilion | 1,505.96 mi (2,423.60 km) |
| Luton to Ilioupoli | 1,512.88 mi (2,434.75 km) |
| Luton to Ioannina | 1,319.07 mi (2,122.85 km) |
| Luton to Irakleio | 1,698.24 mi (2,733.05 km) |
| Luton to Irakleio | 1,507.58 mi (2,426.21 km) |
| Luton to Kaisariani | 1,511.41 mi (2,432.38 km) |
| Luton to Kalamaria | 1,352.71 mi (2,176.97 km) |
| Luton to Kalamata | 1,500.24 mi (2,414.40 km) |
| Luton to Kallithea | 1,510.19 mi (2,430.41 km) |
| Luton to Kalymnos | 1,681.76 mi (2,706.53 km) |
| Luton to Kalyvia Thorikou | 1,524.12 mi (2,452.84 km) |
| Luton to Kamatero | 1,505.06 mi (2,422.17 km) |
