(CNN) -- A former flight attendant whose repeated bomb threats caused massive headaches for United Airlines and inconvenienced thousands of travelers has been sentenced to 18 months in prison. A federal judge in Los Angeles sentenced Patrick Cau, 40, on Monday, ordering him to pay $304,495 in restitution to United and $8,838 to the Los Angeles Police Department. Authorities said Cau, a German national also known as Patrick Kaiser, made eight bomb threats in late 2012 and early 2013 to United after being fired by the airline. Most of the phone threats targeted United jets on his old route between Los Angeles and London.
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Repeated bomb threats caused problems for United Airlines
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Patrick Cau pleaded guilty in August, received 18-month sentence
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Cau's lawyer says he's remorseful and wants to put the matter behind him
He faces possible deportation to @placeholder when he gets out, Charles said.