| Ontario to La Crescenta-Montrose (California) | 38.36 mi (61.73 km) |
| Ontario to La Crosse (Wisconsin) | 1,561.62 mi (2,513.19 km) |
| Ontario to La Grande (Oregon) | 780.12 mi (1,255.49 km) |
| Ontario to La Grange (Illinois) | 1,697.10 mi (2,731.22 km) |
| Ontario to La Grange Park (Illinois) | 1,697.44 mi (2,731.77 km) |
| Ontario to La Habra (California) | 21.21 mi (34.13 km) |
| Ontario to La Homa (Texas) | 1,265.92 mi (2,037.30 km) |
| Ontario to La Marque (Texas) | 1,364.73 mi (2,196.31 km) |
| Ontario to La Mesa (California) | 93.97 mi (151.23 km) |
| Ontario to La Mirada (California) | 24.95 mi (40.15 km) |
| Ontario to La Palma (California) | 28.11 mi (45.23 km) |
| Ontario to La Porte (Indiana) | 1,754.46 mi (2,823.53 km) |
| Ontario to La Porte (Texas) | 1,354.85 mi (2,180.42 km) |
| Ontario to La Presa (California) | 98.16 mi (157.98 km) |
| Ontario to La Puente (California) | 19.87 mi (31.97 km) |
