Florida-based Spirit Airlines came in as worst airline in a recent ranking of 10 major U.S. carriers by travel website ThePointsGuy.com.

  • Travel website ranks 10 US air carriers from best to worst
  • Florida-based Spirit came out on bottom
  • Alaska Airlines called best US-based airline by ThePointsGuy.com

ThePointsGuy.com used 10 factors in calculating their airline rankings (weighting in parentheses): airfare (25 percent), route networks (15 percent), bag/change fees (10 percent), cabin comfort (10 percent), customer satisfaction (10 percent), frequent flyer programs (10 percent), on-time arrivals (10 percent), lost baggage (5 percent), domestic lounges (3 percent) and involuntary bumps (2 percent).

Spirit was ranked last in cabin comfort, customer satisfaction, frequent flyer perks and on-time arrivals. It got the top score in cheap air fares but didn't get higher than fifth in any other category.

Frontier ranked second-worst in ThePointsGuy.com's rankings.

The website dubbed Alaska Airlines the best U.S.-based airline. United came in second because of high marks for cabin comfort and its many lounges (it rated second in both categories).

For more information, including where the website got its data, go to ThePointsGuy.com's full ranking.