Ontario, Canada, or Ontario, California?From Ontario, Calfiornia, you can just take Metrolink (www.metrolinktrains.com.From Ontario, Canada, you should just go to a travel site like Travelocity.com and find out the air fares. It s really the best way to go.
now do you mean Ontario, CALIFORNIA or do you mean ONTARIO CANADA?from Ontario california to los angeles you can take two busesthe omtrains 61 to the pomona station the foothill silver streek to los angeles