The fire reportedly was sparked just before dawn at the airport's international arrivals building.
Would-be travelers and onlookers stood by as firefighters battled the large blaze.
"It was huge, the smoke billowing, and it didn't seem to be stopping," eyewitness Barry Fisher told the AP.
Video captured the raging flames.
Amazingly, no injuries were reported in the huge fire.
The international arrivals terminal was completely destroyed.
Jon Passantino is the Los Angeles bureau chief for BuzzFeed News.
Contact Jon Passantino at email@example.com.
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