Eight people were onboard the utility truck when it was hit shortly before 2:30 p.m. on the taxiway. The right wing of the aircraft was damaged in the crash, but none of the 149 passengers and crew on board were hurt, LAX police said.
Eight people, six men and two women, suffered non-life threatening injuries, although authorities previously said one person was critically injured.
One of the employees was trapped inside and firefighters had to pull them out. The two women had more serious injuries, but none were critical.
According to a flight radar, the plane arrived at LAX from Mexico City.
Passenger Kole Chadwick said he was able to see what was going on outside his window after the collision.
"We just came to an abrupt stop and there was a really loud thud. We were actually seated right next to the emergency exit and we had a pretty good view of it and there was a truck tipped over on its side," he said.
Other passengers said the airline did not say what happened for at least 45 minutes.
"It wasn't a major hit to the extent of being uncomfortable. But we were all wondering, what did we hit?" Carlos Correal said.
An airport officer said it is a highly unusual incident and the airport is still trying to figure out the cause of the crash.