| Ontario to Gonzales (Louisiana) | 1,578.92 mi (2,541.03 km) |
| Ontario to Gonzalez (Florida) | 1,779.78 mi (2,864.29 km) |
| Ontario to Goodlettsville (Tennessee) | 1,744.87 mi (2,808.09 km) |
| Ontario to Goodyear (Arizona) | 306.34 mi (493.00 km) |
| Ontario to Goose Creek (South Carolina) | 2,154.96 mi (3,468.07 km) |
| Ontario to Goshen (Indiana) | 1,799.52 mi (2,896.05 km) |
| Ontario to Goulds (Florida) | 2,293.47 mi (3,690.98 km) |
| Ontario to Grafton (Wisconsin) | 1,712.10 mi (2,755.35 km) |
| Ontario to Graham (North Carolina) | 2,152.36 mi (3,463.89 km) |
| Ontario to Graham (Washington) | 930.25 mi (1,497.09 km) |
| Ontario to Grain Valley (Missouri) | 1,339.66 mi (2,155.98 km) |
| Ontario to Granbury (Texas) | 1,149.71 mi (1,850.28 km) |
| Ontario to Grand Forks (North Dakota) | 1,428.90 mi (2,299.59 km) |
| Ontario to Grand Haven (Michigan) | 1,794.15 mi (2,887.40 km) |
| Ontario to Grand Island (Nebraska) | 1,154.25 mi (1,857.58 km) |
