| Middlesbrough to Kenosha (Wisconsin) | 3,786.29 mi (6,093.44 km) |
| Middlesbrough to Kent (Ohio) | 3,615.91 mi (5,819.24 km) |
| Middlesbrough to Kent (Washington) | 4,598.98 mi (7,401.35 km) |
| Middlesbrough to Kentwood (Michigan) | 3,689.12 mi (5,937.06 km) |
| Middlesbrough to Kerman (California) | 5,163.69 mi (8,310.16 km) |
| Middlesbrough to Kernersville (North Carolina) | 3,813.67 mi (6,137.50 km) |
| Middlesbrough to Kerrville (Texas) | 4,849.24 mi (7,804.09 km) |
| Middlesbrough to Kettering (Maryland) | 3,550.02 mi (5,713.21 km) |
| Middlesbrough to Kettering (Ohio) | 3,790.85 mi (6,100.78 km) |
| Middlesbrough to Kewanee (Illinois) | 3,926.48 mi (6,319.06 km) |
| Middlesbrough to Key Biscayne (Florida) | 4,354.80 mi (7,008.37 km) |
| Middlesbrough to Key Largo (Florida) | 4,394.88 mi (7,072.88 km) |
| Middlesbrough to Key West (Florida) | 4,478.97 mi (7,208.20 km) |
| Middlesbrough to Keystone (Florida) | 4,321.84 mi (6,955.32 km) |
| Middlesbrough to Kihei (Hawaii) | 7,028.08 mi (11,310.60 km) |
