| Ontario to Kihei (Hawaii) | 2,534.38 mi (4,078.69 km) |
| Ontario to Kilgore (Texas) | 1,316.96 mi (2,119.44 km) |
| Ontario to Killeen (Texas) | 1,173.55 mi (1,888.65 km) |
| Ontario to King City (California) | 249.65 mi (401.78 km) |
| Ontario to King of Prussia (Pennsylvania) | 2,342.81 mi (3,770.38 km) |
| Ontario to Kingman (Arizona) | 220.02 mi (354.09 km) |
| Ontario to Kings Mountain (North Carolina) | 2,051.26 mi (3,301.19 km) |
| Ontario to Kings Park (New York) | 2,451.49 mi (3,945.30 km) |
| Ontario to Kings Park West (Virginia) | 2,246.83 mi (3,615.92 km) |
| Ontario to Kingsburg (California) | 204.01 mi (328.33 km) |
| Ontario to Kingsland (Georgia) | 2,093.88 mi (3,369.77 km) |
| Ontario to Kingsport (Tennessee) | 1,974.09 mi (3,176.98 km) |
| Ontario to Kingston (New York) | 2,409.53 mi (3,877.76 km) |
| Ontario to Kingston (Pennsylvania) | 2,313.01 mi (3,722.44 km) |
| Ontario to Kingstowne (Virginia) | 2,255.24 mi (3,629.46 km) |
