Qatar Airways said it won’t be able to operate a full network of flights until 2023 “unless a miracle” happens within the next year, as the aviation market begins a long, slow recovery from the Covid-19 crisis.

The travel industry needs “around two to three years to get back to 2019 levels,” Qatar Airways Chief Executive Officer Akbar Al Baker said in a phone interview on Monday. The Doha-based company has reduced headcount to help reduce operating costs while planes remain grounded, he said.

Airlines around the globe were forced to halt almost all commercial passenger flights after governments slammed shut their borders to contain the COVID-19 outbreak. Airlines stand to lose $314 billion in ticket sales this year, the International Air Transport Association estimates, and it remains unclear when carriers will be able to resume even a partial service.

Qatar has been able to keep operating 75% of its fleet even as other carriers have idled 90% or more, Al Baker said. That’s been partly to accommodate cargo transport and the repatriation of foreign nationals to their home countries.