| Middlesbrough to Glyka Nera | 1,640.92 mi (2,640.80 km) |
| Middlesbrough to Grevena | 1,446.94 mi (2,328.63 km) |
| Middlesbrough to Ialysos | 1,872.73 mi (3,013.86 km) |
| Middlesbrough to Ilion | 1,633.71 mi (2,629.21 km) |
| Middlesbrough to Ilioupoli | 1,640.85 mi (2,640.70 km) |
| Middlesbrough to Ioannina | 1,451.06 mi (2,335.26 km) |
| Middlesbrough to Irakleio | 1,830.66 mi (2,946.17 km) |
| Middlesbrough to Irakleio | 1,635.01 mi (2,631.30 km) |
| Middlesbrough to Kaisariani | 1,639.21 mi (2,638.05 km) |
| Middlesbrough to Kalamaria | 1,471.75 mi (2,368.56 km) |
| Middlesbrough to Kalamata | 1,637.82 mi (2,635.82 km) |
| Middlesbrough to Kallithea | 1,638.28 mi (2,636.56 km) |
| Middlesbrough to Kalymnos | 1,801.51 mi (2,899.24 km) |
| Middlesbrough to Kalyvia Thorikou | 1,651.87 mi (2,658.42 km) |
| Middlesbrough to Kamatero | 1,632.67 mi (2,627.52 km) |
