Delta passengers faced delays, cancellations and more headaches on Wednesday as the Atlanta-based airline struggled with its computer systems for the third straight day.
More than 150 flights were cancelled by the morning, in addition to the 800 scrapped on Tuesday and 1,000 cancelled Monday. Hundreds of other flights were delayed on Wednesday morning.
Delta Air Lines said in a statement that it planned to resume "normal operations" by Wednesday afternoon.
Hundreds of thousands of passengers have been stranded overnight throughout the ordeal, many spending the night in airports around the globe.
Others were put up in hotels by Delta, including 2,300 in Atlanta alone on Tuesday night.
The system the airline uses to check in and board passengers as well as dispatch its planes is still slow, Gil West, Delta's chief operating officer said.
The problems started early on Monday when, according to a statement by Mr West, a critical piece of equipment failed at the airline's headquarters. It caused a loss of power and key systems and equipment did not switch over to backups as designed.
Delta extended a travel-waiver policy to help stranded passengers rearrange their travel plans.
It offered refunds and $200 (€180) in travel vouchers to people whose flights were cancelled or delayed at least three hours.