The Longest Light Rail Line On Earth, L.A.’s Metro A Line, Is Opening 4 New Stations This Week

Los Angeles’s vast public transit network is seeing several major upgrades, and one of the most notable is the long-anticipated A Line extension reaching Pomona. Beginning on Friday, September 19, 2025 , riders will gain access to four additional stations in the San Gabriel Valley, thanks to the ongoing Foothill Gold Line project. As of 2023, the A Line holds the title of the world’s longest light rail line , stretching 48.5 miles with 44 stations from Azusa to Long Beach. Once the extension is complete, the route will expand to 58 miles overall. What is the Foothill Gold Line project? --------------------------------------- The Foothill Gold Line expansion will ultimately bring six new stations to the A Line beyond the current APU/Citrus College terminus. The $1.5 billion first phase debuts on September 19, introducing four stops: Glendora, San Dimas, La Verne/Fairplex, and Pomona North. Two additional stations—Claremont and Montclair—are slated to open by 2030. This extension broadens transit access to a wide range of destinations, including Raging Waters, Glendora Village, the University of La Verne, the L.A. County Fairgrounds, the Pomona Arts District, and more. Trains will run every 8 minutes during rush hours , with service spanning from 4 a.m. to midnight. The longest light rail line on Earth ------------------------------------ The A Line—originally known, and still often referred to, as the Blue Line—began service in 1990, linking [Downtown Los Angeles](https://secretlosangeles.com/things-to-do-downtown-la/) with Long Beach. Over the following 30 years, the line underwent several expansions and upgrades, including the addition of a Downtown L.A. tunnel in 2014. That tunnel later enabled the A Line to absorb the L Line’s former Union Station–Pasadena–Azusa route in 2023, pushing its length past Belgium’s 42-mile Coast Tram and earning it the title of the world’s longest light rail line. *Edited by Sofía Delpueche.* Source: https://secretlosangeles.com/los-angeles-foothill-a-line-extension-opening/