Airlines quickly reacted to the news, with some even telling passengers they could remove their masks mid-flight.
Following a request from the Centers for Disease Control and Prevention (CDC), the Department of Justice filed a notice of appeal on Wednesday in federal court in Tampa.
Here's what the airlines' policies are:
Alaska Airlines said that "some guests" with "particularly egregious" behavior will remain banned "even after the mask policy is rescinded. "
United Airlines told FOX Business that it banned about 1,000 customers during the span of the policy.
|ALK||ALASKA AIR GROUP INC.||47.13||+1.97||+4.36%|
|UAL||UNITED AIRLINES HOLDINGS INC.||46.07||+2.99||+6.94%|
|DAL||DELTA AIR LINES INC.||40.84||+2.22||+5.74%|
|LUV||SOUTHWEST AIRLINES CO.||45.11||+2.64||+6.22%|
"On a case-by-case basis, we will allow some customers who were previously banned for failing to comply with mask-related rules to fly United again – after ensuring their commitment to follow all crewmember instructions on board," the airline said.
Delta Air Lines
Delta Air Lines will maintain its ban on certain individuals who refused to comply with a COVID-19 mask mandate on Delta flights.
"With masks now optional, Delta will restore flight privileges for customers on the mask non-compliance no-fly list only after each case is reviewed and each customer demonstrates an understanding of their expected behavior when flying with us," spokesperson Anthony Black said in a Thursday statement to FOX Business.
"Any further disregard for the policies that keep us all safe will result in placement on Delta's permanent no-fly list," he added. "Customers who demonstrated egregious behavior and are already on the permanent no-fly list remain barred from flying with Delta."
Approximately 2,000 people remain on the company's mask non-compliance no-fly list, a Delta spokesperson told Fox Business on Friday.
Southwest Airlines told FOX Business that its list of unruly and disruptive passengers is unaffected by the court decision.
The airline said it does not discuss security protocols in specific terms.
FOX Business' Tyler O'Neil contributed to this report.