Northwest Airlines and Delta Air Lines are expected to formally announce a merger as early as Tuesday, a source with knowledge of the merger talks said Sunday.
The boards of both carriers had not given final approval to a deal as of Sunday, but there were no major remaining issues to resolve between the companies, the source said.
"The open question is whether to move forward with a merger announcement without a pilot accord on either side," the person said.
It is possible that there will be an agreement with Delta pilots by the time a merger is unveiled, but no deal with the Northwest pilots union is expected this week.
Delta management and the Delta branch of the Air Line Pilots Association (ALPA) continued their discussions over the weekend. Delta executives and pilot leaders had previously negotiated terms for a four-year contract.
In recent days, the Delta pilots were focused on changes in their current contract pertaining to flying scope, which are needed to allow the merger to proceed, a second person, with knowledge of the Delta pilot talks, said Sunday.
The Delta pilots union did not make any public comments Sunday on whether the union's executive council had approved new contract terms.
How Northwest pilots see it