A Delta Airlines flight on the way from San Diego to Salt Lake City was forced to form an emergency return to the San Diego International Airport Saturday morning after experiencing some kind of pressure issues within the cabin.

Delta Flight 978, a Boeing 737-800 twin-jet aircraft, took off from Lindbergh Field at 6:15 a.m. as planned. However, 15 or 20 minutes into the flight, things quickly changed, resulting in a daunting ordeal for about 140 passengers and crew aboard the plane.

Passenger Melinda Wing was traveling together with her husband to go to her kids in Salt Lake City. They were sitting near the fire escape when, suddenly, she said their oxygen masks dropped from above their seats all of sudden.

“The pilot came on [the loudspeaker] and announced that we were losing pressure,” she told NBC 7. “He told us to place on our masks.”

Wing said the plane then began turning around and heading back San Diego, where it safely landed without incident about 20 minutes later.

While she and her husband tried to stay calm, Wing said there was some panic on the plane because the aircraft dropped to a lower altitude and made its way back to Delta Flights to San Diego today.

“There was a little bit of hysteria; babies crying, losing pressure in their ears. Condensation began from under the seats as we were landing, which was a touch scary, because people thought it had been smoke,” she recalled.

Fortunately, once the airplane landed back at Lindbergh Field, Wing said everyone on board seemed okay. The aircraft was towed in and passengers eventually disembarked.

As they landed, Wing said she texted her kids to allow them to know they weren’t getting to make it to Utah as planned. She also texted them photos of her and her husband wearing their oxygen masks and told her kids she loved them.

“We landed safely and every one is well. But now that it’s over, that we’ve landed, it all sets in,” added Wing.

Michael Mishko was also a passenger on Delta Flight 978. He said he was sleeping when, about 20

minutes into the flight, he was suddenly awakened to the sounds of oxygen masks dropping and therefore the pilot making an announcement.

Mishko, who was sitting toward the rear of the plane, said he heard a bang behind him, “like an enormous rush of air.”

He then said he heard some passengers and crew saying there was smoke within the cabin.

Though some people around him were panicking, Mishko said he wasn’t all that frightened.

“I wasn’t too afraid, as long because the engines are running, we’re okay,” he said. “But, it was definitely an experience.”

Passenger Kipp Gstettenbauer said the incident was a touch surreal. He’s never experienced anything love it before.

“It was really weird. Not tons you'll do up there, you only see what happens,” he told NBC 7. “I thought it had been a prank initially . it had been just weird.”

Gstettenbauer said he believes the oxygen supply unit shorted out on the plane, causing some smoke throughout the cabin. He said tons of individuals aboard the aircraft were surprised , with some screaming. He also said some passengers fell ill thanks to the sudden drop by altitude.

Gstettenbauer said that when the plane returned to Lindbergh Field, passengers could see fire engines, police cars and ambulances waiting on the runway.

After disembarking, the airline re-booked him for a later flight, he said.

Paula Knight, also aboard Delta Flight 978, said she became very frightened once the oxygen masks dropped and therefore the pilot made his announcement.

“It was just frantic. I couldn’t get the mask on right,” she recalled.

Knight said the cabin then experienced some changes in temperature, pressure and altitude, with it becoming hot then quickly very cold. She then saw condensation and possible smoke making its way through the cabin.

“It scared the crap out of me. i assumed i used to be during a movie. It freaks you out. I assumed I used to be dying. [It was] seriously scary,” she told NBC 7.

NBC 7 reached bent Delta Airlines to discuss the incident but haven't heard back from the corporate . Delta was working to urge Flight 978 passengers booked on other flights following the incident. Officials at the San Diego International Airport said the Delta Flights to San Diego were canceled for the day and therefore the plane is currently out of service.