Delta Air Lines CEO Ed Bastian said that the airline has seen minor setbacks, but he is confident it will get back on a "positive trajectory."
The company reported a 7 percent year-over-year decline in consolidated passenger revenue for the month of July.
Delta said this was driven by continued close-in domestic-yield weakness, the ongoing supply-demand imbalance in the transatlantic and headwinds from the company's yen hedge positions.
"We've invested in product, we've invested in people, earnings have gone up and share buybacks have gone up," Bastian said during a Tuesday interview on CNBC's "Closing Bell." "As a consequence of that, people who are focused very much on the top line get concerned about the future, but we're managing to bring that unit revenue back to positive."
Bastian said the company is anticipating an impact from Brexit and has taken its winter schedule down about 6 percent in the U.K. He also said that Delta hasn't seen any impact from Zika virus.
"We do have travel waivers in effect, so if passengers want to change their flights because of concern, we're amendable to doing that. But we haven't seen any big impact," Bastian said.