MILWAUKEE — Dozens of air shows that draw tens of thousands of people and generate millions of dollars for local economies have been canceled this year after the military grounded its jet and demonstration teams because of automatic federal budget cuts.

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 300 air shows held in the United States each year, said John Cudahy, president of the International Council of Air Shows.