United Airlines and Emirates will sell seats on one another’s planes, denoting a turnaround in the business models of the one-time enemies.

As part of the deal, Joined said it will begin flights to Emirates’ hub in Dubai from Newark Freedom Global Air next March.

The codeshare agreement, which the Presidents declared Wednesday, will give the aircrafts access to the next carrier’s destinations and is the most recent example of defrosting in the relationship between U.S. and Gulf airlines, especially as international air travel bounce back from over two years of the Coronavirus pandemic.

Tim Clark, Emirates’ president, said he trusts the United agreement could some time or another develop into a joint venture, similar to the one the Dubai-based airline has with Australian carrier Qantas.

“I don’t see why it shouldn’t,” Clark told journalists at an event disclosing the deal with United at a hangar at Dulles Global Airport, close to Washington, D.C.

The partnership, whenever supported by regulators, will likewise permit travelers to acquire and burn frequent their flyer miles on every carrier.

United together and other major U.S. carriers like Delta Air Lines and American Airlines had spent years lobbying against enormous Persian Bay aircrafts’ development in the US, contending the state-owned carriers were contending unreasonably with backing from government subsidies, which those nations denied.

Emirates said last week it is finishing its codeshare partnership with United rival JetBlue Airways on Oct. 30. In the mean time, Abu Dhabi-based Etihad said it will grow its partnership with New York-based JetBlue.

Qatar Airways and American Airlines in June said they would grow their codeshare partnership.