GDT > RTD Rider’s Guide > Routes > A Line
Take the train to the plane…
Often referred to as “the jewel in the crown” of the RTD system, the A Line opened in April 2016 and connects Denver Union Station to Denver International Airport (DEN). Trains take 37 minutes to complete the 23 mile journey, calling at 5 intermediate stations.
Map & Schedule
The A Line operates from 3am to 12:30am, 7 days a week with an extra late night round trip being operated at 1am on Friday and Saturday nights. 15 minute frequency service is provided from 4:30am to 6:30pm, frequency is 30 minutes outside of those times.
Vehicles Used
The A line is operated with Hyundai Rotem ‘Silverliner V‘ 2-car multiple units. On weekdays trains normally feature 2 units (making 4-car consists) while weekends typically only see a single 2-car unit. Train lengths may sometime be lengthened for special events. It requires seven trains to operate the 15 minute frequency service and four trains to operate the 30 minute frequency service.
The line is electrified at 25kV 60Hz AC throughout.
Ridership
| Year | Total |
| 2018 | 7,053,000 |
| 2019 | 7,870,000 |
| 2020 | 3,773,000 |
| 2021 | 4,920,000 |
| 2022 | 5,776,000 |
| 2023 | 6,184,000 |
| 2024 | 5,908,000 |
More A Line Content…