For fliers joining us on the Group Shuttle at Union Station, you may either book a rideshare to Union Station from Denver International Airport (DIA) or catch the lightrail train (A Line) directly from DIA to Union Station. Uber/Lyft The cost of an Uber or Lyft from DIA to Union Station can range from $42 – $52 and is about a 30-minute ride. Rideshare pickup can be found by following sign to Baggage Claim & Ground Transportation. Exit the doors from baggage claim and walk to Island 5 (you will see signs for Rideshare Pickup). Catching the Train To catch the A Line from DIA to Union Station, follow signs for “Trains to City” once you’ve made your way to Baggage Claim & Ground Transportation. Signs will lead you toward the Westin Airport Hotel. Head down the escalators to the Transit Center where you can purchase a ticket for the A Line to Union Station. *Please note that rides on A Line are expected to be free in August as it is Green Month in Denver, but it is not guaranteed. If not free, this ride will cost $10). If desired, you can pre-purchase a ticket for the A Line using the RTD MyRide App Trains leave every 15 minutes between 5 a.m. and 8 p.m. and every 30 minutes outside of those hours. The ride will have 6 stops between DIA and Union Station and takes about 37 minutes.