It honors the legacy of the late San Francisco Supervisor Harvey Milk, a gay rights leader and the first openly gay man to be elected to public office in California.
Mayor London Breed was there for the official unveiling.
"Wow, this is really nice. I love it. It looks beautiful. It looks vibrant and it looks clean. And it's also green," the mayor said.
"We want people to arrive and be proud of San Francisco. And be proud of SFO and this experience," said Ivar Satero, SFO's airport director.
The first phase of the $2.5 billion terminal opened in July 2019.
RELATED: San Francisco International Airport opens terminal honoring Harvey Milk
There was one small temporary snag: an escalator stopped working.
The new terminal includes nine departure gates, concessions, security check point and a new museum gallery.
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