Low-cost carriers gained ground after 9/11
As airlines dealt with the fallout in the years after 2001, low-cost carriers gained ground in the airline industry.
Low-cost carriers went from having 12.3% of market share in 2001 to 18.1% in 2003, according to analysis from the Business Travel Coalition.
Some airlines merged
The ramifications were felt for years after 9/11. United and Continental merged in 2010, and low-cost carriers Southwest and AirTran merged as well.
Now, demand is declining again
Airlines around the world are hurting from decreased demand. United Airlines said on Tuesday that it has experienced a 70% decline in demand for domestic flights, and that it will cut flights in the coming months.
Some airlines might go out of business
Korean Air said that it might go out of business because of the coronavirus pandemic.
Reuters reported that in a note to employees, the company's president, Woo Kee-hong, said that "if the situation continues for a longer period, we may reach the threshold where we cannot guarantee the company's survival."
Korean Air has grounded around 100 of its 145 passenger aircraft, according to the report.
Airlines are asking for help
Airlines were recently granted a waiver by the Federal Aviation Administration, according to a report by CNN.
The waiver allows airlines to stop running "ghost flights" — costly, empty flights — that were used to keep essential slots for takeoff and landing.
Airlines could recover more quickly than after 9/11, though the path forward is uncertain
Airlines could recover more quickly than after 9/11, according to Helene Becker, an analyst at Cowen quoted in the Barron's report.
She noted that airlines in China are already starting to recover, but that airlines more reliant on business travel, like American Airlines and Delta Airlines, could experience a longer recovery as the economy struggles.