US Airways Operates Final Flights

US Airways is gone. Well, it’s gone as far as the U.S. government is concerned.

That’s because today, American received a single operating certificate from the FAA, effectively bringing US Airways’ operations under American’s. According to American’s news release:

The FAA’s approval for American and US Airways to operate under one certificate is the culmination of more than 18 months of work aligning the carriers’ operating policies and procedures. Beginning today, most flight operations, maintenance and dispatch procedures will be identical for all flights. Air traffic control communications will refer to all American and US Airways flights with the call sign “American.”

Previously, US Airways pilots identified their flights to air-traffic controllers as “Cactus,” a reference to the desert environs of US Airways’ headquarters in Phoenix, Arizona.

While Cactus may be gone, vestiges of US Airways remain.

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The two airlines’ mileage programs have been merged and are in the process of consolidating.

The last piece in the integration of the two airlines will be the move to a single reservations system, set to take place later this year. At that point, US Airways’ website will be taken offline, and final goodbyes will be in order.

Reader Reality Check

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This article originally appeared on FrequentFlier.com.