Azul and Trip Linhas Aereas will codeshare initially, as they begin to integrate their operations.
The partnership will be implemented by October, says a source at the airlines.
The codeshare will initially be unilateral until both airlines unify their IT systems, with TRIP operated flights carrying AZUL´s code, says Trip.
Brazil's Civil Aviation Authority (ANAC) confirms that it has received a request for a domestic code sharing between the carriers on all routes.
Azul and Trip's networks will remain independent until the Brazilian competition watchdog CADE makes a decision on the merger, says the source. "Both airlines have become subsidiaries of the Azul Trip holding company, but until the merger is authorised we cannot implement irreversible changes to the operation of both airlines," they say, adding that the process can take up to a year.
The Campinas, Brazil-based carriers announced that they would merge in May. Together Azul and Trip serve 99 airports in Brazil with 115 aircraft. They had a combined domestic passenger market share of close to 15% in June. Synergies are expected to be easy to obtain, as both airlines are headquartered in Campinas, which is in Sao Paulo state, and operate fleets of Embraer 190 family and ATR 72-600 aircraft.