Hawaiian Airlines Flight 7 was a few miles off the Southern California coast when an unidentified 66-year-old passenger requested a blanket and was told the cost would be $12, according to Los Angeles Airport Police.
Hawaiian Airlines spokesman Alex Da Silva said: "The decision to divert is based on safety". Officials said there was a dispute between a 66-year-old male passenger and the flight crew over the charge for a blanket.
The man had asked to speak to company representatives, arguing that he should not have to pay for the blanket because it was cold, the LA times reported.
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The man was reportedly allowed to fly to Hawaii with another airline on a later flight.
The pilot was forced to divert to Los Angeles after the man's "threatening behavior".
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After the man's comment, the flight was diverted to LAX due to "an unruly passenger", and airport police were called, Pedregon said. "I'm going to call the president", Enriques said.
Speaking with CBS Los Angeles, traveller Eileen Berstrom said the incident was "ridiculous". "First of all, it costs $12,000 for them to land here, and it's a $12 blanket".
Following the contentious presidential election, America's divisions have been on full display in a staggering array of situations and spaces - including airplanes.
In January, an Alaska Airlines traveler verbally bashed a Trump supporter - and was bounced from the plane. The man was escorted off the plane.
"Get out of here", a passenger said.