Frontier comes in second to last for ranking of best and worst airlines | SummitDaily.com

Frontier comes in second to last for ranking of best and worst airlines

A Frontier airplane taxis to a runway on the west side of Denver International Airport January 16, 2015.

Denver-based Frontier Airlines came in second to last in a ranking of 10 largest domestic carriers, leaving ultra-low-cost carrier Spirit on the bottom rung.

Travel-advice site The Points Guy ranked airlines in four broad categories: price, convenience, headaches and extras.

Releasing their results this week, Alaska Airlines stood atop the group, only faltering in the size of its route network. But study authors say its future looks bright in that regard, given the U.S. Department of Justice approval of its merger with Virgin America.

Read the full story on The Denver Post website, click here.