Airliner, seen in a dream, is a symbol of the journey. Fly on an airliner means that you will be lucky in business. Long flight suggests that some business applications will require your great efforts, but it is unlikely that you will get satisfaction from the result. If you dream you see the airliner coming in to land, then in real life you may expect some troubles in the near future.
A crashed airliner in your dream may predict big loss of your property.