United Airlines flight diverted over 'biohazard' as passengers ask for masks: 'The crew is vomiting' | 28 July 2024 | A United Airlines flight was diverted after an onboard "biohazard" left crew members vomiting and passengers asking for masks. Flight 2477 was bound for Boston from Houston's George Bush Intercontinental Airport Sunday morning, but was forced to touchdown early in Washington, D.C., so the plane could undergo "a deep clean" after a passenger became ill, United told The Post. The situation was so severe that crew members and others onboard started becoming ill themselves, prompting the pilots to request a diversion, according radio traffic from the pilot. "I talked to the crew and it sounds like it's quite bad back there. The crew is vomiting, and passengers all around are asking for masks," a crew member was heard saying in audio from the flight.