| Middletown to Kennewick (Washington) | 1,806.96 mi (2,908.03 km) |
| Middletown to Kenosha (Wisconsin) | 280.77 mi (451.85 km) |
| Middletown to Kent (Ohio) | 194.87 mi (313.62 km) |
| Middletown to Kent (Washington) | 1,953.79 mi (3,144.32 km) |
| Middletown to Kentwood (Michigan) | 242.21 mi (389.79 km) |
| Middletown to Kerman (California) | 1,937.28 mi (3,117.76 km) |
| Middletown to Kernersville (North Carolina) | 331.15 mi (532.94 km) |
| Middletown to Kerrville (Texas) | 1,060.52 mi (1,706.74 km) |
| Middletown to Kettering (Maryland) | 407.81 mi (656.31 km) |
| Middletown to Kettering (Ohio) | 17.59 mi (28.31 km) |
| Middletown to Kewanee (Illinois) | 316.26 mi (508.98 km) |
| Middletown to Key Biscayne (Florida) | 984.85 mi (1,584.95 km) |
| Middletown to Key Largo (Florida) | 1,019.79 mi (1,641.19 km) |
| Middletown to Key West (Florida) | 1,043.13 mi (1,678.76 km) |
| Middletown to Keystone (Florida) | 792.20 mi (1,274.92 km) |
