| Ontario to Colton (California) | 16.11 mi (25.93 km) |
| Ontario to Columbia (Illinois) | 1,550.45 mi (2,495.21 km) |
| Ontario to Columbia (Maryland) | 2,268.33 mi (3,650.52 km) |
| Ontario to Columbia (Missouri) | 1,439.48 mi (2,316.61 km) |
| Ontario to Columbia (Pennsylvania) | 2,284.31 mi (3,676.24 km) |
| Ontario to Columbia (South Carolina) | 2,089.85 mi (3,363.29 km) |
| Ontario to Columbia (Tennessee) | 1,729.58 mi (2,783.49 km) |
| Ontario to Columbia Heights (Minnesota) | 1,495.62 mi (2,406.96 km) |
| Ontario to Columbine (Colorado) | 791.33 mi (1,273.52 km) |
| Ontario to Columbus (Georgia) | 1,885.55 mi (3,034.50 km) |
| Ontario to Columbus (Indiana) | 1,783.59 mi (2,870.40 km) |
| Ontario to Columbus (Mississippi) | 1,671.54 mi (2,690.08 km) |
| Ontario to Columbus (Nebraska) | 1,214.87 mi (1,955.15 km) |
| Ontario to Columbus (Ohio) | 1,940.96 mi (3,123.67 km) |
| Ontario to Commack (New York) | 2,449.81 mi (3,942.60 km) |
