| Middlesbrough to Karditsa | 1,502.00 mi (2,417.24 km) |
| Middlesbrough to Kastoria | 1,418.42 mi (2,282.73 km) |
| Middlesbrough to Katerini | 1,473.09 mi (2,370.71 km) |
| Middlesbrough to Keratsini | 1,634.61 mi (2,630.65 km) |
| Middlesbrough to Kerkyra | 1,423.47 mi (2,290.85 km) |
| Middlesbrough to Kiato | 1,603.75 mi (2,580.99 km) |
| Middlesbrough to Kifisia | 1,634.85 mi (2,631.04 km) |
| Middlesbrough to Kilkis | 1,448.07 mi (2,330.44 km) |
| Middlesbrough to Komotini | 1,531.93 mi (2,465.40 km) |
| Middlesbrough to Korinthos | 1,613.51 mi (2,596.70 km) |
| Middlesbrough to Koropi | 1,646.77 mi (2,650.22 km) |
| Middlesbrough to Korydallos | 1,634.80 mi (2,630.96 km) |
| Middlesbrough to Kos | 1,817.62 mi (2,925.18 km) |
| Middlesbrough to Kozani | 1,447.22 mi (2,329.08 km) |
| Middlesbrough to Lagos | 1,519.59 mi (2,445.55 km) |
