Turbulence 2: Fear of Flying (1999)

In this action-packed drama, a group of people who have completed a therapy program to overcome their severe fear of flying celebrate with a group flight to L.A. However, they soon discover that there are perfectly good reasons to be afraid of airliners - a group of terrorists hijack the jet, murdering the pilot and threatening to kill all the passengers with chemical weapons. With the captain's chair empty, one of the passengers is forced to bring the plane safely to the ground.