The FAA is ordering airlines to cut thousands of flights nationwide, as cities deal with a severe shortage of air traffic controllers during the government shutdown.

Beginning next week, daytime rocket launches are all officially scrubbed thanks to the government shutdown.

The government shutdown has triggered 1,000-plus flight delays as the FAA cuts capacity at 40 airports. Airlines are offering refunds and policy changes amid ongoing travel disruptions.

Airlines have started implementing a 4% reduction in domestic flights at 40 of the busiest US airports, following an order from the Federal Aviation Administration. Transportation Secretary Sean Duffy warned the percentage could rise to 15-20% if the government shutdown doesn’t end soon.