Southwest Airlines announced that it will drop the open seating model it's used since its founding more than 50 years ago. The airline is under pressure to boost profits.
Delta Air Lines is facing a federal investigation as it struggles to recover from a global software meltdown. The Atlanta-based carrier canceled hundreds of flights Tuesday for the fifth day in a row.
In a statement to NPR, Delta acknowledged the Department of Transportation’s notice and said the airline is "fully cooperating" with the investigation.