| Ontario to Excelsior Springs (Missouri) | 1,341.11 mi (2,158.30 km) |
| Ontario to Exeter (California) | 178.41 mi (287.12 km) |
| Ontario to Fair Lawn (New Jersey) | 2,405.94 mi (3,871.99 km) |
| Ontario to Fair Oaks (California) | 377.56 mi (607.62 km) |
| Ontario to Fair Oaks (Virginia) | 2,243.21 mi (3,610.10 km) |
| Ontario to Fairbanks (Alaska) | 2,469.61 mi (3,974.46 km) |
| Ontario to Fairborn (Ohio) | 1,886.41 mi (3,035.88 km) |
| Ontario to Fairburn (Georgia) | 1,887.69 mi (3,037.95 km) |
| Ontario to Fairfax (Virginia) | 2,246.43 mi (3,615.29 km) |
| Ontario to Fairfax Station (Virginia) | 2,244.80 mi (3,612.65 km) |
| Ontario to Fairfield (California) | 381.97 mi (614.72 km) |
| Ontario to Fairfield (Ohio) | 1,857.43 mi (2,989.24 km) |
| Ontario to Fairhope (Alabama) | 1,747.12 mi (2,811.72 km) |
| Ontario to Fairland (Maryland) | 2,263.90 mi (3,643.39 km) |
| Ontario to Fairmont (Minnesota) | 1,404.51 mi (2,260.34 km) |
