| Ontario to Noblesville (Indiana) | 1,781.47 mi (2,867.00 km) |
| Ontario to Nocatee (Florida) | 2,125.84 mi (3,421.20 km) |
| Ontario to Nogales (Arizona) | 429.67 mi (691.49 km) |
| Ontario to Nolensville (Tennessee) | 1,748.56 mi (2,814.04 km) |
| Ontario to Norco (California) | 8.52 mi (13.72 km) |
| Ontario to Norcross (Georgia) | 1,904.79 mi (3,065.46 km) |
| Ontario to Norfolk (Nebraska) | 1,225.26 mi (1,971.86 km) |
| Ontario to Norfolk (Virginia) | 2,316.98 mi (3,728.82 km) |
| Ontario to Normal (Illinois) | 1,627.74 mi (2,619.59 km) |
| Ontario to Norman (Oklahoma) | 1,152.66 mi (1,855.02 km) |
| Ontario to Norridge (Illinois) | 1,701.35 mi (2,738.05 km) |
| Ontario to Norristown (Pennsylvania) | 2,344.93 mi (3,773.80 km) |
| Ontario to North Adams (Massachusetts) | 2,453.31 mi (3,948.22 km) |
| Ontario to North Amityville (New York) | 2,443.72 mi (3,932.79 km) |
| Ontario to North Arlington (New Jersey) | 2,405.98 mi (3,872.05 km) |
