When the likes of Robert Zemeckis and Denzel Washington team up, there's an air of expectation that something special will occur.
It doesn't, alas.
If you take out the impressive scenes aboard the plane, what's left is nothing more than an average made-for-tv film.
Denzel makes a good drunk, but the moral ambiguity surrounding his character is questionable. The film attempts to be darker in tone than it really is, but ultimately shies away from a truly honest portrayal of an alcoholic. Leaving Las Vegas on a Plane
this is not.
And as mentioned elsewhere here, the love interest storyline, which couldn't have been shoe-horned in more if it tried, just doesn't work.
What's left is a good, but certainly not Oscar-worthy performance by Washington, in an otherwise mediocre film.