Air travelers have been on a wild ride this fall with flight cancellations and staffing shortages related to the US government shutdown, on top of the annual Thanksgiving crush at airports still to come.

Here’s what we know about air travel over the busy holiday period, when nearly 6 million Americans took to the skies last year, according to AAA figures.

Will airline flight schedules be restored to normal by then?

Travel insiders and analysts have said that it could take a week or two for airlines to recover from the recent disruptions, and that depends on the shutdown being resolved by this week’s end.

Transportation Secretary Sean Duffy suggested on Tuesday during remarks at Central Wisconsin Airport that flight reductions might not end immediately after a deal to end the shutdown is reached, but that flights could normalize by Thanksgiving.

“So it depends on, are we going to have air traffic controllers come into work?” Duffy said. “If we have the controllers showing up, I think we’re going to be back to, you know, regular flight schedules again.”

Later on Tuesday, during a press conference at Chicago O’Hare, Duffy said he expects flight issues to be resolved in time for the busy Thanksgiving travel period. A vote in the House Wednesday could bring the government one step closer to reopening.

A plane takes off near an air traffic control tower at Denver International Airport. Some air traffic controllers have called out sick while others have chosen to retire.