| Ontario to East Providence (Rhode Island) | 2,545.61 mi (4,096.77 km) |
| Ontario to East Rancho Dominguez (California) | 35.21 mi (56.66 km) |
| Ontario to East Renton Highlands (Washington) | 956.81 mi (1,539.84 km) |
| Ontario to East Ridge (Tennessee) | 1,836.35 mi (2,955.31 km) |
| Ontario to East Riverdale (Maryland) | 2,266.74 mi (3,647.96 km) |
| Ontario to East San Gabriel (California) | 27.56 mi (44.36 km) |
| Ontario to East St. Louis (Illinois) | 1,555.63 mi (2,503.54 km) |
| Ontario to East Wenatchee (Washington) | 934.74 mi (1,504.32 km) |
| Ontario to Eastern Goleta Valley (California) | 127.71 mi (205.53 km) |
| Ontario to Eastlake (Ohio) | 2,026.41 mi (3,261.20 km) |
| Ontario to Eastmont (Washington) | 986.30 mi (1,587.30 km) |
| Ontario to Easton (Maryland) | 2,312.84 mi (3,722.16 km) |
| Ontario to Easton (Pennsylvania) | 2,349.15 mi (3,780.59 km) |
| Ontario to Eastpointe (Michigan) | 1,953.27 mi (3,143.48 km) |
| Ontario to Eastvale (California) | 5.57 mi (8.96 km) |
