The Westin Denver Downtown Hotel:

 

1. Super Shuttle: $25 for a shared ride. Book at http://www.supershuttle.com/locations/denverden 

2. Uber or Lyft: approximately $40 to $50.  Download the Uber or Lyft apps from iTunes or Google Play stores on your smartphone

3. Taxi: approximately $50 one way; pick up from the taxi stand in the terminal 

4. Public Transit via RTD Light Rail: Take the RTD Light Rail, Line A, from Denver Airport Station to Union Station. At Union Station Track #1, Walk 10 minutes - 0.5 miles to The Westin Denver Downtown Hotel (Lawrence St). This would cost you $9 each way (this is an All-Day Pass to take any Regional Transportation District (RTD) rail or bus service that same day). Use the Trip Planner tool at http://rtd-denver.com/ 

BUSES: Regional Transportation District (RTD), also operates five bus routes under the frequent airport express bus service called SkyRide.