A - Union Station to Denver Airport Station
This Route Travels Eastbound & Westbound
For more information, visit https://www.rtd-denver.com/Schedules.shtml.
Current Service Alerts
Board A Line on track 2 from Tue Sep 29 at 12:00 PM through Sat Oct 10 due to maintenance.
🧑🔧 Affected stops: 38th / Blake Station 40th / Colorado Station Central Park Station
A Line service change: 30-minute frequency from Tue Sep 29 at 12:00 PM through Sat Oct 10 due to maintenance.
🧑🔧 RTD will implement a temporary 30-minute service frequency on the A Line, seven days a week, to accommodate repairs by agency concessionaire operator Denver Transit Partners at the York/Josephine railroad crossing. The adjusted schedule begins with the noon departure from Denver Union Station on Tuesday, Sept. 29, and will remain in effect through Saturday, Oct. 10. Bus shuttles will not be used during this extended service interruption to allow RTD customers to continue traveling between Union Station and Denver International Airport by rail, eliminating the need to alternate between rail and bus services. Trains will use a single track in some locations while construction at the York/Josephine crossing is underway.
A Line service change: beginning Sun Sep 27.
Change Schedule adjustments, modifying early morning and evening service frequencies as follows: 3 a.m. to 6 a.m.: 30-minute frequency 6:15 a.m. to 7:30 p.m.: 15-minute frequency 7:30 p.m. to end of service: 30-minute frequency (as compared to current schedule, which transitions to 30-minute frequency beginning with the 6:30 p.m. departure from Union Station and the 7:27 p.m. departure from Denver Airport). These changes to schedule timing will also result in the loss of (2) daily morning trips, the 5:45 a.m. eastbound and the 6:42 a.m. westbound. Reason Adjusting the span of 15-minute service better aligns frequency with customer demand by providing more frequent service later into the evening. Schedule changes also create more consistent departure times during periods of 30-minute service, making the schedule easier to understand while improving operational efficiency and better aligning service with contractual requirements. Survey Results Out of 152 respondents, 40% reported a positive impact from the change, 28% indicated it had no impact, and 32% perceived the change negatively.
Stations Served
This route stops at 38th & Blake Station Track 1, 38th & Blake Station Track 2, 40th & Colorado Station Track 1, 40th & Colorado Station Track 2, 40th Ave & Airport Blvd - Gateway Park Station Track 1, 40th Ave & Airport Blvd - Gateway Park Station Track 2, 61st & Pena Station Track 1, 61st & Pena Station Track 2, Central Park Station Track 1, Central Park Station Track 2, Denver Airport Station, Peoria Station Track 1, Peoria Station Track 2 and Union Station Track 1.
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