Question:
What is the cheapest way to travel from Boulder to Denver?
Answer(s):
The RTD "Bx" route. I commute in less than 40 minutes with no traffic or weather, and it's FREE with your student bus pass. Straight shot from various locations in Boulder to downtown Denver
Use the RTD, but be sure that you have the sticker that came with your BuffOne card at the beginning of the year, if not you can't ride for free
Take the bus for sure, like mentioned before the BX will take you there. Or the AB will take you right to the airport
If you are a student you should have a bus pass and after taking the BX that goes straight to light rail you can take the light rail anywhere arounf downtown and even into Littleton area its really easy and inexpensive especially if you are a student.
The bus for sure.
Bus its efficient and cheap. Taxi is like 50 bucks and a tram will come in a few years. Or you can hitch hike :) jk



