One airline blames the lack of adequate staffing and extremely high fuel prices.
Omicron disrupted plans to bring back the service in February
Southwest Airlines pilot reportedly cited for allegedly assaulting a flight attendant at a San Jose hotel bar during an argument over wearing masks.
Southwest is investigating a pilot who used a phrase that's become a stand-in for insulting President Joe Biden over the plane's public address system.
Southwest Airlines chaos continued into Tuesday. Over the weekend, Southwest canceled some 2,400 flights, including more than 435 on Monday; leaving hundreds of thousands of people stranded or seriously delayed.