Unions representing flight attendants at AirTran Airways and Southwest Airlines will send an integration and transition accord to their members for ratification.

The deal, brokered by the AirTran chapter of the Association of Flight Attendants-CWA and the Transport Workers Union’s Local 556, follows similar agreements announced last week by the airlines’ mechanics and flight instructor unions; members from the two pilot groups have already approved a seniority list integration accord.

Approval of integration lists, while not essential for the merger between Southwest and AirTran, has helped previous consolidation efforts, notably at Delta Air Lines. TWU represents about 9,800 flight attendants and AFA 2,400.

Union members will now review the agreement, which should take several weeks. A vote will follow, although no date has yet been set.

“The union and company negotiating teams never lost focus on the ultimate goal of creating an integrated seniority list and transition plan for our flight Attendants—one that avoided arbitration,” says Southwest’s Chief Operating Officer Mike Van de Ven.

“Much like the pilots before them, everyone involved in the flight attendant discussions took ownership of their role in the integration of AirTran into Southwest Airlines, and I want to commend our teams for delivering this crucial first step in that process.”