Dreaming of a plane crash implies that you don't have to expect too much, and your dream may come to nothing. Don't bet your whole life on it. On the other hand, if you happen to dream of a plane crash on the eve of going abroad, it is because you are too worried, so you can go to the temple to pray for peace.
Dreaming that you can't catch the plane shows that you are afraid of losing a good opportunity in real life, so you must start to face up to the problem and seize the opportunity. If you miss the plane, you have seized the opportunity.
Dreaming of looking up at the plane is an auspicious dream, which means that your position in work and even in society will be promoted soon, and you will get the support of others.