| Ontario to Willow Grove (Pennsylvania) | 2,356.56 mi (3,792.51 km) |
| Ontario to Willowbrook (California) | 36.97 mi (59.49 km) |
| Ontario to Willowick (Ohio) | 2,024.49 mi (3,258.10 km) |
| Ontario to Wilmette (Illinois) | 1,707.39 mi (2,747.77 km) |
| Ontario to Wilmington (Delaware) | 2,335.91 mi (3,759.29 km) |
| Ontario to Wilmington (North Carolina) | 2,257.10 mi (3,632.45 km) |
| Ontario to Wilmington (Ohio) | 1,896.34 mi (3,051.86 km) |
| Ontario to Wilmington Island (Georgia) | 2,115.53 mi (3,404.62 km) |
| Ontario to Wilson (North Carolina) | 2,236.54 mi (3,599.36 km) |
| Ontario to Wilsonville (Oregon) | 825.32 mi (1,328.23 km) |
| Ontario to Wilton Manors (Florida) | 2,291.33 mi (3,687.53 km) |
| Ontario to Wimauma (Florida) | 2,128.11 mi (3,424.87 km) |
| Ontario to Winchester (Kentucky) | 1,877.12 mi (3,020.94 km) |
| Ontario to Winchester (Nevada) | 201.20 mi (323.80 km) |
| Ontario to Winchester (Virginia) | 2,198.13 mi (3,537.54 km) |
