In ONT you're pretty much toast. I've had a heck of a time getting from the ramp to ANYWHERE. It typically takes a cab anywhere from 45-60 minutes to finally get there to pick me up. Getting from the terminal to our ramp works better only because the cabs are sitting right there at the curb. We're suppose to have an arrangement with Super Shuttle to run us in either direction when we're on a trip but they are totally unreliable.