[2] Of the 73 California stations served by Amtrak, Ontario was the 70th-busiest in fiscal year 2019, boarding or detraining an average of approximately 11 passengers daily (though the station does not receive daily service).

[3] The Amtrak Thruway #19 stops here twice daily, providing service between San Bernardino and Bakersfield, and points in between.

[4] Ontario was initially a flag stop on the Southern Pacific Sunset Route.

[5] Local streetcar service was provided nearby at the corner of Euclid and Emporia by the Ontario and San Antonio Heights Railroad Company by 1897.

[7][8] Media related to Ontario station (Amtrak) at Wikimedia Commons