Chief District Judge Barbara MG Lynn dismissed the case on Tuesday for lack of subject matter jurisdiction.
Emily Galvin-Almanza said she and other passengers were about to board when gate agents said the flight was canceled because the pilots were too exhausted.
A lawsuit filed Monday by the Southwest Airlines Pilots Association (SWAPA) alleges that Boeing "deliberately" misled the airline and pilots about the company's troubled 737 MAX airplane, resulting in over $100 million in lost wages.
United released a memo telling its pilots to cut themselves off at least 12 hours before flying. The FAA standard is eight hours before flying.
The men reportedly failed their alcohol blood tests, asked for a 30-minute break, then returned with an even higher concentration of booze in their systems.
The airline chalked it up to an "administrative oversight."