| Upminster to Kaneohe (Hawaii) | 7,222.84 mi (11,624.04 km) |
| Upminster to Kankakee (Illinois) | 4,005.67 mi (6,446.50 km) |
| Upminster to Kannapolis (North Carolina) | 3,985.05 mi (6,413.32 km) |
| Upminster to Kansas City (Kansas) | 4,360.82 mi (7,018.07 km) |
| Upminster to Kansas City (Missouri) | 4,353.73 mi (7,006.64 km) |
| Upminster to Kapaa (Hawaii) | 7,200.06 mi (11,587.37 km) |
| Upminster to Kapolei (Hawaii) | 7,231.55 mi (11,638.06 km) |
| Upminster to Katy (Texas) | 4,879.04 mi (7,852.05 km) |
| Upminster to Kaukauna (Wisconsin) | 3,873.39 mi (6,233.62 km) |
| Upminster to Kaysville (Utah) | 4,857.93 mi (7,818.08 km) |
| Upminster to Kearney (Missouri) | 4,335.02 mi (6,976.55 km) |
| Upminster to Kearney (Nebraska) | 4,439.93 mi (7,145.38 km) |
| Upminster to Kearns (Utah) | 4,880.60 mi (7,854.57 km) |
| Upminster to Kearny (New Jersey) | 3,478.49 mi (5,598.08 km) |
| Upminster to Keene (New Hampshire) | 3,311.27 mi (5,328.98 km) |
