From Denver Airport to Union Station: A Quick Transit Guide

union station denver

Taking the A Line train from Denver International Airport to Union Station is the most affordable way to reach downtown Denver. At just $10 for a day pass, you’ll be at Union Station in 37 minutes while enjoying scenic views of the city skyline and mountains.

🚊 Quick Facts

  • Cost: $10 (day pass with unlimited RTD transfers)
  • Duration: 37 minutes
  • Frequency: Every 15 minutes (peak) / 30 minutes (late night)
  • Distance: 23 miles

Finding the Transit Center

After collecting your luggage on Level 5, head to the south side of the terminal. Follow signs for “Transit Center” or “Trains to City” through Jeppesen Terminal.

Transit signage at Denver Airport
Clear signage guides you to the Transit Center

Step-by-Step Directions:

  1. Exit baggage claim (Level 5) on the south side
  2. Follow signs for “Transit Center” or “Trains to City”
  3. Take escalator down to Level 1
  4. Look for Denver Airport Station near the Westin Hotel

💡 Quick tip: Airport staff in yellow vests are always happy to point you in the right direction.


Getting Your Ticket

Purchase your ticket at the station using:

  • 🎫 Ticket vending machines (accept cash and cards)
  • 📱 RTD mobile app (for digital tickets)

Ticket Options:

Ticket Type Price Best For
Day Pass $10 Multiple trips, best value
Single Ride $10 One-way to Union Station
Airport Fare $10 Required for airport trips

⚠️ Important: Keep your ticket handy—RTD conducts random fare inspections.


The Journey

RTD A Line train at platform
The modern A Line train offers comfortable seating and luggage space

What to Expect:

  • ♿ Level boarding with ample luggage space
  • 🧳 Designated areas for large bags
  • 🪑 Comfortable seating with mountain views
  • 📶 Free WiFi on most trains
  • 🔌 Power outlets at some seats

Route Map:

DEN Airport → 40th•Airport → Peoria → 40th•Colorado → 
Central Park → 38th•Blake → Union Station
Interior view of A Line train
Spacious interior with panoramic windows

🎯 Pro tip: Choose a window seat on the right side for the best downtown skyline views!


Welcome to Union Station

Historic Union Station building
The beautifully restored Union Station – your gateway to downtown Denver

At Union Station:

  • 🍽️ Dining: Terminal Bar, Stoic & Genuine, Mercantile
  • Coffee: Pigtrain Coffee, Next Door Union Station
  • 🛍️ Shopping: Tattered Cover Bookstore, local boutiques
  • 🚌 Free Mall Ride: Catch it on 16th Street (west side)

Downtown Connections:

  • 16th Street Mall: Free bus service
  • LoDo (Lower Downtown): 5-minute walk
  • Coors Field: 10-minute walk
  • Denver Art Museum: 15-minute walk or quick bus ride

Stay Alert: Don’t fall asleep on the train! Some travelers miss their stop and end up on the west side of Denver.


Alternative Transportation

🚗 Other Options from DEN:

Option Cost (approx.) Travel Time Best For
A Line Train $10 37 min Budget travelers
Uber/Lyft $35-60 25-40 min Door-to-door service
Taxi $55-70 25-40 min No app needed
SuperShuttle $25-30 45-60 min Shared rides

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📌 Travel Checklist

Before you go:

  • Download RTD mobile app (optional)
  • Have $10 cash or card ready
  • Check train schedule (especially late night)
  • Allow extra time during peak hours
  • Keep ticket until you exit Union Station

🗺️ Helpful Resources


The A Line remains the most budget-friendly choice for reaching downtown Denver, combining convenience with affordability at just $10 per person. Safe travels!

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