| Middlesbrough to Klaukkala | 1,036.58 mi (1,668.21 km) |
| Middlesbrough to Kokkola | 1,062.49 mi (1,709.91 km) |
| Middlesbrough to Kontiolahti | 1,235.25 mi (1,987.95 km) |
| Middlesbrough to Korsholm | 1,000.38 mi (1,609.96 km) |
| Middlesbrough to Kotka | 1,111.22 mi (1,788.34 km) |
| Middlesbrough to Kouvola | 1,107.98 mi (1,783.12 km) |
| Middlesbrough to Kuhmo | 1,249.79 mi (2,011.35 km) |
| Middlesbrough to Kuopio | 1,171.06 mi (1,884.65 km) |
| Middlesbrough to Kurikka | 1,007.21 mi (1,620.95 km) |
| Middlesbrough to Kuusamo | 1,284.60 mi (2,067.36 km) |
| Middlesbrough to Kuusankoski | 1,105.83 mi (1,779.67 km) |
| Middlesbrough to Lahti | 1,074.85 mi (1,729.81 km) |
| Middlesbrough to Laitila | 944.86 mi (1,520.60 km) |
| Middlesbrough to Lapinlahti | 1,171.79 mi (1,885.82 km) |
| Middlesbrough to Lappeenranta | 1,159.21 mi (1,865.56 km) |
