The survey of passenger satisfaction has ranked New Jersey's Newark Liberty International and New York's LaGuardia, located in the biggest U. S. aviation market, as the lowest.

LaGuardia had the worst score among 66 facilities ranked in the 2010 North America Airport Satisfaction Study released today by market researcher J. D. Power & Associates, with 604 out of 1,000 possible points. However, Newark was voted as second to last at 609.

"There are things airports can do and move up as well as slip, unfortunately as is the case with all three airports in the New York area", said Stuart Greif, Vice President and General Manager of J. D. Power's global hospitality and travel practice.

The survey analyzed the responses from more than 12,100 people who took round-trip flights between January and December 2009 and evaluated both arriving and departing airports, revealed J. D. Power, a Westlake Village, California-based unit of McGraw-Hill Cos.

LaGuardia's 604 score contrasted with the 683 average of 20 medium airports and 742 for Kansas City International, which led the category. LaGuardia fetched second highest in the previous J. D. Power survey in 2008.