| Ontario to Grayslake (Illinois) | 1,694.97 mi (2,727.79 km) |
| Ontario to Great Bend (Kansas) | 1,087.93 mi (1,750.86 km) |
| Ontario to Great Falls (Montana) | 986.15 mi (1,587.06 km) |
| Ontario to Great Falls (Virginia) | 2,245.57 mi (3,613.90 km) |
| Ontario to Great Neck (New York) | 2,426.50 mi (3,905.07 km) |
| Ontario to Greeley (Colorado) | 831.00 mi (1,337.36 km) |
| Ontario to Green (Ohio) | 2,022.04 mi (3,254.16 km) |
| Ontario to Green Bay (Wisconsin) | 1,728.97 mi (2,782.51 km) |
| Ontario to Green River (Wyoming) | 680.53 mi (1,095.20 km) |
| Ontario to Green Valley (Arizona) | 411.98 mi (663.02 km) |
| Ontario to Green Valley (Maryland) | 2,247.36 mi (3,616.78 km) |
| Ontario to Greenacres (Florida) | 2,279.08 mi (3,667.83 km) |
| Ontario to Greenbelt (Maryland) | 2,267.76 mi (3,649.60 km) |
| Ontario to Greendale (Wisconsin) | 1,704.13 mi (2,742.53 km) |
| Ontario to Greeneville (Tennessee) | 1,961.37 mi (3,156.53 km) |
