Delta Air Lines

The Delta pilots have had the same benefits since 2016. Renegotiations began in April 2019 and had entered the mediation stage, but have been postponed since the start of the COVID-19 pandemic.

Pay for flight attendants typically starts when all the passengers are seated and the plane's doors close. The change is expected to increase wages by several thousand dollars a year.

The cases will be determined on a case-by-case basis, depending on the company. Here's a look at where each of the major U.S. airlines stands.

The airline changed its announcement about the end of the federal mask mandate after a firestorm of criticism from public health experts who called it inaccurate and misleading.

Delta, United, Southwest, American and Alaska Airlines and other say masks are now optional for travelers on their aircraft.

Some workers are concerned about new guidance from the Centers for Disease Control and Prevention that shortens the isolation period for COVID-19 cases.

Delta will not mandate employees to be vaccinated against the coronavirus, but its CEO says the charge is necessary because the average hospital stay for the virus costs the airline $40,000.

United's CEO says the change was a top request from customers. Delta and American followed suit after United's announcement. Airlines are trying to coax wary customers to return amid the pandemic.

U.S. airlines are facing unprecedented economic turmoil. CEO Ed Bastian discusses Delta's decision to fly its planes at 60% capacity and why halting the coronavirus is better than bailouts.

A sharp drop in air travel due to the pandemic cuts into Delta's bottom line, but the airline says it will continue to block out middle seats to create more distance between passengers.