Direct answer: At the moment, there are reports of planned or potential reductions in U.S. airspace capacity and targeted flight cuts due to a prolonged federal government shutdown, but there is no official, permanent “shutdown” of all U.S. airspace. Specifics being discussed include reductions in capacity (for example, up to about 10%) at a number of high-traffic airports and the possibility of closing certain portions of the national airspace if staffing shortages worsen. The situation is evolving, and exact airports affected and precise timelines have varied in reports across outlets. travelers should monitor announcements from the U.S. Department of Transportation, the Federal Aviation Administration, and major airlines for the latest guidance and any travel advisories.