| Ontario to Worthington (Ohio) | 1,939.25 mi (3,120.93 km) |
| Ontario to Wright (Florida) | 1,819.53 mi (2,928.25 km) |
| Ontario to Wyandanch (New York) | 2,446.04 mi (3,936.53 km) |
| Ontario to Wyandotte (Michigan) | 1,940.90 mi (3,123.58 km) |
| Ontario to Wylie (Texas) | 1,214.44 mi (1,954.45 km) |
| Ontario to Wyndham (Virginia) | 2,236.59 mi (3,599.45 km) |
| Ontario to Wyoming (Michigan) | 1,817.93 mi (2,925.67 km) |
| Ontario to Wyomissing (Pennsylvania) | 2,310.95 mi (3,719.12 km) |
| Ontario to Xenia (Ohio) | 1,889.83 mi (3,041.39 km) |
| Ontario to Yakima (Washington) | 880.91 mi (1,417.68 km) |
| Ontario to Yankton (South Dakota) | 1,248.24 mi (2,008.85 km) |
| Ontario to Yauco (Puerto Rico) | 3,301.78 mi (5,313.70 km) |
| Ontario to Yazoo City (Mississippi) | 1,565.49 mi (2,519.42 km) |
| Ontario to Yeadon (Pennsylvania) | 2,350.34 mi (3,782.51 km) |
| Ontario to Yelm (Washington) | 929.03 mi (1,495.13 km) |
