WDIO says a total of 77,711 passengers went through the airport in January, February and March.
The jump in traffic follows the January opening of the new $78 million terminal at the airport.
According to the News Tribune, Delta Air Lines, the world's second-biggest airline and dominant Twin Cities carrier, plans to upgrade its daily 5:30 a.m. flight from Duluth to MSP airport with a larger aircraft starting in June.
“A lot of the airlines in the industry are upgrading their flights from regional jets and integrating newer aircraft into their fleets,” Tom Werner, executive director of the Duluth Airport Authority, told the newspaper. “What’s really cool about them is they’re getting away from compact 50-seaters. They’re bringing back first-class cabin seating.”
Meanwhile, Delta announced Tuesday its net income tumbled 94 percent to $7 million following one-times charges for facilities, fleet and other items in the quarter that ended March 31, Bloomberg reports.