The Lethal Weapon actor is accused of pushing passenger Carla Loeffler over while running to board a flight, according to TMZ.
Loeffler claims that she and Busey were waiting for the same flight at an Oklahoma airport in May, and has filed the suit at L.A. County Superior Court.
She alleged that Busey was attending an airport bar for some time before he drunkenly pushed her over while trying to cut in line.
The lawsuit states that Loeffler suffered injuries during the incident and is demanding unspecified damages from the 57-year-old.
Gary Busey landed a guest role playing himself on Two and a Half Men earlier this month.
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