| Upminster to Kinston (North Carolina) | 3,869.29 mi (6,227.01 km) |
| Upminster to Kirkland (Washington) | 4,783.06 mi (7,697.59 km) |
| Upminster to Kirksville (Missouri) | 4,226.95 mi (6,802.62 km) |
| Upminster to Kirkwood (Missouri) | 4,224.20 mi (6,798.19 km) |
| Upminster to Kiryas Joel (New York) | 3,454.93 mi (5,560.17 km) |
| Upminster to Kissimmee (Florida) | 4,367.55 mi (7,028.88 km) |
| Upminster to Klamath Falls (Oregon) | 5,086.21 mi (8,185.47 km) |
| Upminster to Knightdale (North Carolina) | 3,882.27 mi (6,247.91 km) |
| Upminster to Knik-Fairview (Alaska) | 4,450.80 mi (7,162.87 km) |
| Upminster to Knoxville (Tennessee) | 4,095.75 mi (6,591.47 km) |
| Upminster to Kokomo (Indiana) | 3,968.83 mi (6,387.22 km) |
| Upminster to Kuna (Idaho) | 4,858.86 mi (7,819.58 km) |
| Upminster to Kyle (Texas) | 4,948.48 mi (7,963.81 km) |
| Upminster to La Cañada Flintridge (California) | 5,439.94 mi (8,754.73 km) |
| Upminster to La Crescenta-Montrose (California) | 5,439.76 mi (8,754.45 km) |
