| Ontario to Winder (Georgia) | 1,931.54 mi (3,108.51 km) |
| Ontario to Windsor (California) | 424.98 mi (683.94 km) |
| Ontario to Windsor (Colorado) | 825.84 mi (1,329.07 km) |
| Ontario to Winfield (Kansas) | 1,178.49 mi (1,896.60 km) |
| Ontario to Winnetka (Illinois) | 1,707.00 mi (2,747.16 km) |
| Ontario to Winona (Minnesota) | 1,545.26 mi (2,486.85 km) |
| Ontario to Winston-Salem (North Carolina) | 2,103.71 mi (3,385.59 km) |
| Ontario to Winter Garden (Florida) | 2,148.52 mi (3,457.71 km) |
| Ontario to Winter Gardens (California) | 91.81 mi (147.75 km) |
| Ontario to Winter Haven (Florida) | 2,154.94 mi (3,468.04 km) |
| Ontario to Winter Park (Florida) | 2,161.68 mi (3,478.89 km) |
| Ontario to Winter Springs (Florida) | 2,163.86 mi (3,482.40 km) |
| Ontario to Winterville (North Carolina) | 2,268.04 mi (3,650.06 km) |
| Ontario to Winton (California) | 286.29 mi (460.73 km) |
| Ontario to Wisconsin Rapids (Wisconsin) | 1,639.38 mi (2,638.33 km) |
