Delta Air Lines won't pay more for Bombardier planes mired in a US-Canada trade dispute, but the controversy could delay delivery of the jets, the airliner's chief said Wednesday.

"We will not pay those tariffs," said Delta chief executive Ed Bastian, who sharply criticized preliminary penalties announced by President Donald Trump's administration on Canadian aerospace manufacturer Bombardier.

"We will take the aircraft," Bastian told an earnings conference call. "There may be a delay."

The comments came just hours ahead of talks between Prime Minister Justin Trudeau and President Donald Trump expected to focus on the aerospace dispute.

Ottawa has taken a tough line following the US move, with Canada suspending talks with American aerospace giant Boeing on an order of fighter jets.

The US Commerce Department has proposed heavy duties on Bombardier's new CSeries jetliners following a Boeing complaint that the order was significantly underpriced due to more than $3 billion in subsidies from Ottawa and the Quebec government.

A final decision is expected on December 19.

Bastian noted that the tariffs at this point were preliminary and said the airline planned to make its case to US officials. He dismissed Boeing's arguments as "unrealistic and bit nonsensical.

Bastian said there were "various other options" being considered if the US still moves ahead with the penalties, but declined to elaborate.

Delta plans to receive the first of 75 planes from Bombardier in spring 2018.

Delta reported that third-quarter profit fell 6.4 percent to $1.2 billion, due in part to a $120 million hit from disruptions caused by Hurricane Irma.