Flight safety

First responders encountered an "aircraft down in flames" and a vehicle it had hit during a desperate landing on Saturday.

Air traffic control was unable to make contact with the pilot for 40 minutes before communications were reestablished.

Wesley Moribe, 41, and Courtney Paterson, 46, allegedly left a quarantine station at San Francisco International, and boarded a United Airlines flight to Hawaii.

The Allegiant Air Flight #1304 pilot is in stable condition after suffering a seizure midflight, the airline has said.

"Thanks to this man, we are now sitting in the back in the Denver airport as they search our plane and luggage for any bombs," passenger Tara Kraatz said.

Local police said the male passenger had a "history of mental illness."

"I am God, I am God, I am God," the unnamed woman screamed as other passengers subdued her.

At least three people have died and two others have been injured.

"Remarkably, 2014 has the lowest number for passenger flight accidents in modern aviation history."