Air travel, stifled by the COVID-19 pandemic, is widely expected to rebound in the second half of 2021 as wide vaccine rollouts encourage travel and drive summer bookings.
"A year after the onset of the pandemic, travelers are gaining confidence and beginning to reclaim their lives," Delta Chief Executive Officer Ed Bastian said in a statement.
But the company’s net orders - which are adjusted for cancellations - remained in negative territory for the first quarter, with a total of minus 61 net orders dominated by a Norwegian cancellation unveiled in the previous month.
The Heathrow airport in London is charging an extra 8.90 pounds ($12.40) to departing passengers to cover costs of falling air travel due to the COVID-19 pandemic.
Emirates hopes that its full fleet of jumbo Airbus SE A380 jets will return to the skies by early 2022 as coronavirus vaccine becomes more accessible across the globe.