American Airlines, US Airways, and the U.S. Justice Department said on Wednesday they were open to settling a court fight over whether the two companies should be allowed to merge, but there was no sign of an imminent agreement.

The Justice Department filed a lawsuit in mid-August, asking a federal court to block the deal, which would form the world's biggest air carrier. The government said the merger would lead to higher prices for customers, while the companies said it would make them more competitive and strengthen the market.