When: I recall seeing this when I was young so could have been early to mid 1990s.
Setting: It is either based primarily in an aeroplane around the passengers and may also involve the airport but those details are a bit hazy. From what I can remember it wasn't futuristic but set at the current time.
Details: the only real clear details I can recall are at the end the passengers need to go to sleep in their original positions on the plane to get out of their predicament (time loop?), however one passenger needs to stay awake in the cockpit and ends up disappearing once all the others wake up. I believe the problem facing the characters was either time travel or time loop related.