The Flight Before Christmas takes place in an airport terminal in Florida. It's the day before Christmas, and an extreme weather event has hit. The event has forced a closure of the airport and has trapped a diverse group of people in the terminal. As the evening progresses, everyone has their own cross to bear, and by the end of the play, each person is brought to the realization of the real meaning of Christmas. Characters include an elderly couple facing a health crisis, a homeless man who is sheltering there for the night, a hard-nosed security officer, a runaway child, a wealthy woman, a family with financial issues, and a single mother.