Three women were in the cab arguing around 1:45 a.m., forcing the driver to pull over on the freeway near Morena Boulevard, police said.
Two women were still arguing when they got out of the cab and one jumped from the bridge. She landed on the dirt below and was not hurt, authorities said.
The woman was charged with being drunk in public.
Nobody else was injured during the incident. The driver reportedly took the other two women to their destination.