The cost of a single PATH train ticket is set to increase next spring — and will climb steadily each year until it hits $4 by 2029, Port Authority officials said. A single trip on the PATH train, which currently costs $3, is set to rise to $3.25 by spring 2026, and gradually increase by a quarter each January from 2027 to 2029 in order to pay for “sweeping system improvements” to the trains move between Newark, Jersey City, Hoboken and Manhattan. In a blow to drivers, the Port Authority’s plan