We are seeing fares at this price on various days starting as soon as this upcoming Monday with departures through December 15, 2019, returns available in January. As for weekend travel, you can find dates surrounding the weekends of December 8-9, and 15-16, if you're flexible with travel dates, you can even extend your impromptu weekend getaway through Monday or take off a bit earlier on Thursdays.
Searching on United's site, I found seats departing the third weekend in December with flights leaving DEN on Friday, December 14 and returning from PHX on Sunday, December 16, 2018.
For those of you in Phoenix looking for a weekend escape to the Rockies. Try departing PHX on Thursday, December 6 and return from DEN on Sunday, December 9, 2018.
Need a room in the sunny Phoenix? Here's what's available for the mentioned weekend dates on Hotelwatchdog.
For more weekend travel deals from your city, make sure to have a look at our new and improved Weekender search tool.