| Ontario to Waimea (Hawaii) | 2,515.24 mi (4,047.88 km) |
| Ontario to Waipahu (Hawaii) | 2,601.83 mi (4,187.25 km) |
| Ontario to Waipio (Hawaii) | 2,600.13 mi (4,184.51 km) |
| Ontario to Wake Forest (North Carolina) | 2,201.73 mi (3,543.34 km) |
| Ontario to Wakefield (Virginia) | 2,249.76 mi (3,620.64 km) |
| Ontario to Waldorf (Maryland) | 2,268.20 mi (3,650.31 km) |
| Ontario to Walker (Michigan) | 1,817.05 mi (2,924.26 km) |
| Ontario to Walker Mill (Maryland) | 2,268.54 mi (3,650.87 km) |
| Ontario to Walla Walla (Washington) | 831.93 mi (1,338.86 km) |
| Ontario to Wallingford Center (Connecticut) | 2,471.56 mi (3,977.60 km) |
| Ontario to Wallington (New Jersey) | 2,406.80 mi (3,873.37 km) |
| Ontario to Walnut (California) | 14.49 mi (23.31 km) |
| Ontario to Walnut Creek (California) | 364.19 mi (586.11 km) |
| Ontario to Walnut Park (California) | 35.60 mi (57.29 km) |
| Ontario to Waltham (Massachusetts) | 2,549.34 mi (4,102.77 km) |
