Officials in Las Vegas say the airport clocked its busiest September on record this year.
Transportation authorities said Thursday that more than 4 million people flew in and out of McCarran International Airport last month, a 7.3 percent increase over the same period last year.
The Clark County Department of Aviation says the nation's ninth-busiest airport has tallied 35.6 million passengers through September, putting it on track to beat last year's 45 million.
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Domestic traffic saw the largest percentage increase, though international passages also ticked up a bit. Among airlines, low-cost, no-frills carrier Spirit saw the biggest percentage gain at 19 percent.
McCarran handled a record 48 million passengers in 2007.