The closest major airports near Mount Baldy Ski in Mount Baldy are Los Angeles - Ontario Intl. Airport (ONT) and San Bernardino, CA (SBD-San Bernardino Intl.). They’re located 40 kilometers to the south and 64 kilometers southeast of this big-name attraction, respectively. To get your trip off to a great start, find out if you can rent a car from the airport or a rental company nearby.