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.
Step-by-Step Directions:
- Exit baggage claim (Level 5) on the south side
- Follow signs for "Transit Center" or "Trains to City"
- Take escalator down to Level 1
- 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:
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🎯 Pro tip: Choose a window seat on the right side for the best downtown skyline views!
Welcome to Union Station
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 |
📌 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
- RTD Trip Planner: rtd-denver.com
- Live Train Tracker: RTD Next Ride
- Union Station Info: unionstationindenver.com
- Emergency/Info: RTD Customer Care: 303-299-6000
The A Line remains the most budget-friendly choice for reaching downtown Denver, combining convenience with affordability at just $10 per person. Safe travels!