Passenger satisfaction with airlines has shown decline among both leisure and business travelers, according to a survey by J.D. Power and Associates released Wednesday.

According to the 2012 North America Airline Satisfaction Study, which ranks satisfaction on a 1,000 point scale, satisfaction with the industry dropped two points (from 683 to 681) from last year. Among traditional carriers, the level of satisfaction dropped four points, to 647. Budget carriers fared better, seeing a three-point increase in satisfaction to 754.

The survey of more than 13,500 passengers bases satisfaction on factors including cost and fees, in-flight services, boarding/deplaning/baggage, flight crew, aircraft, check-in and reservations.

According to a press release, checked beg fees are a particular area of customer irritation. Satisfaction among passengers who pay to check bags averages 85 points lower than those who don't. Also important are factors of an airline's process and people, which appear to outweigh price when it comes to a passenger's decision to fly the airline again.

Wonder how the new $100 bag fees are going to affect this.

In the "traditional" airline category, Alaska Airlines ranked highest for the fifth year in a row, with JetBlue taking top honors in the "low-cost" carrier segment for a seventh year.

How did all the airlines rank? Check out the slideshow below. To see how the airlines fared in each of the seven categories, check out the survey results here.

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  • #1 Traditional Carrier: Alaska Airlines

    678 points<br /> <br /> GABRIEL BOUYS/AFP/Getty Images

  • Air Canada

    677 points<br /> <br /> John Li/Getty Images

  • Delta Air Lines

    659 points. Delta is the only airline to have improved its ranking. <br /> <br /> Bill Pugliano/Getty Images

  • Continental Airlines

    649 points

  • American Airlines

    647 points<br /> <br /> Allison Joyce/Getty Images

  • United Airlines

    625 points

  • US Airways

    614 points<br /> <br /> Kevork Djansezian/Getty Images

  • #1 Low-Cost Carrier: JetBlue

    776 points<br /> <br /> Allison Joyce/Getty Images

  • Southwest Airlines

    770 points

  • WestJet

    733 points

  • AirTran Airways

    698 points

  • Frontier Airlines

    694 points<br /> <br /> Jeff Swensen/Getty Images