A Southwest Airlines flight bound for Houston was diverted to Jackson, Mississippi, after a loss in cabin pressure that prompted oxygen masks to deploy.
Southwest said in a statement Wednesday that Flight 214 had left Atlanta on Tuesday evening when the problem occurred.
The plane carrying 118 passengers and five crew members landed safely in Jackson and was taken out of service.
About four hours later passengers were transferred to another plane that flew them into Houston early Wednesday morning.
Southwest says the loss in pressure led a flight attendant to be taken to a hospital to be evaluated, but no other details were available.