Passenger traffic through Lehigh Valley International Airport is up.

More than 3.5 percent more people flew through LVIA in Dec. 2011 than the previous December.

Last month, 71,521 passengers traveled to and from LVIA during the month, compared to 69,097 in 2010.

For the year of 2011, 873, 353 total passengers used the airport verus 838, 211 in 2010. That's an increase of 4.19 percent.

The number one airline by passengers was U.S. Airways, with 19,301 passengers in December.

Other airline passenger totals were United (14,819); AirTran Airwrays (13,103), Delta Air Lines (12,523) and Allegiant Air (9,423).