Wednesday marks 10 years of the A Line – more than 59M customers have enjoyed the ride
RTD is celebrating the 10th anniversary of the A Line on Wednesday, the metro area’s first commuter rail service known as the Train to the Plane. The A Line operates from Denver Union Station to Denver International Airport (DEN) providing customers with fast, reliable connections to domestic and international travel. Ridership along the A Line’s 23-mile track surpassed all other RTD rail services in 2025 and 59 million customers have come aboard the train since it debuted. Experience the A Line to understand its success.
10 years, 10 things to know about the A Line
Faster than a Cheetah, cheaper than a taxi to the airport, and destined to be “A” – 10 things to know about RTD’s first commuter rail line on its 10th anniversary.
One day, millions of journeys: RTD joins first World Public Transport Day
Join transit agencies around the world for World Public Transit Day
RTD is joining transit agencies around the world today to mark the first World Public Transit Day, a global initiative led by the International Association of Public Transport. The day highlights how transit does more than move people from point A to B but also shapes regions in subtle but transformative ways. Watch a special video from RTD and see how transit agencies are marking this special day.