From the airport, if you want to avoid an expensive Lyft, you should make your way to the transit center and look for the "AB" line of buses (AB1, AB2, ABX). These will take you to Boulder from the airport for around $10. You'll want to get off at Broadway and Baseline, and walk/take a $4 Lyft to the venue, which is about a 10-minute walk away.

The venue is The Village Center Ballroom in Boulder. Coming from the South on US 36 (assuming you are driving from the airport), exit towards Baseline and turn right towards the gas stations/tall buildings (you can see the venue from the highway). Continue east until 30th street, and turn right. This is Williams Village, CU's off-campus housing facility. Parking is straightforward from here, as there is paid parking all around, with free parking on the streets if you can find it. The venue will be the large square building in the middle of the complex, hard to miss. Once inside, head to the southwest side of the building to find the ballroom.

The official hotel of Flatiron 3 is the Broker Inn!It's just across the street from the venue and located near several food options. Book now since you're already here!

https://www.choicehotels.com/colorado/boulder/rodeway-inn-hotels/co223/rates?checkInDate=2018-04-20&checkOutDate=2018-04-23