For years, the biggest draws at air shows have been the military’s two elite jet teams, the U.S. Navy’s Blue Angels and the U.S. Air Force’s Thunderbirds, and their intricate stunts. The armed services also have provided F-16, F-18 and F-22 fighter jets and the U.S. Army Parachute Team, known as the Golden Knights. All the teams were grounded as of April 1 to save money, and the military also dramatically curtailed its help with ground displays of various aircraft.

Those cutbacks have affected more than 200 of the approximately 300 air shows held in the United States each year, said John Cudahy, president of the International Council of Air Shows. About 60 shows have been cancelled, and he expects more cancellations as the season progresses and hope for restoration of the budget cuts fades. He predicted 15 percent to 20 percent of the shows won’t return next year, even if the military begins participating again.

“The worst case is that they either cancel and go out of business, or they don’t cancel and they have such poor attendance and they go out of business,” he said.

Local economies also will feel the sting of the cancellations without the air shows bringing in crucial tourism dollars.

Representatives for some of the nation’s biggest air shows, such as the air and water shows in Chicago and Milwaukee and the Experimental Aircraft Association’s AirVenture in Oshkosh, Wis., said they didn’t expect a lack of active military jets to affect their events. The Chicago and Milwaukee shows are held along the shore of Lake Michigan, where large crowds are expected to gather for a free spectacle; the Oshkosh event is primarily a convention of pilots and aviation enthusiasts, with an air show attached.

But organizers of other events said they expected such a dramatic drop in attendance that they felt they had to cancel.

Thunder over the Blue Ridge in Martinsburg, W.V., an easy day trip from Baltimore and Washington, won’t happen. The two-day show drew 88,000 people when the Thunderbirds performed in 2010, said Bill Walkup, one of the board members and manager of the Martinsburg airport.

“Having the Thunderbirds or the Blue Angels is like having the Super Bowl, it’s a household name,” Walkup said. Without a jet team, the show typically draws 15,000 or fewer.

Organizers also faced a challenge because the show had been hosted for the past few years by the West Virginia Air National Guard. After the Guard said it couldn’t do that because of budget cuts, organizers considered hosting the show at the civilian side of the airport — until the Thunderbirds cancelled.

“When this happened, it just put us out of business,” Walkup said.

Maj. Darrick Lee, spokesman for the Thunderbirds, said a typical season averages about $9.75 million and the Air Force needs to focus its resources now on its mission in Afghanistan. Team members are still doing local public appearances that have little or no cost, he said.