Pray? Pray? These poor people do not need prayers; they need help. Praying to the 'God' that allowed these people to die horrible deaths? Praying to the 'God' that is forcing countless thousands to slowly starve to death?
Unfortunately, as MC says, it just isn't possible to land that much supplies in a tiny airport. You just need to watch the news to see that most countries are sending help- the quantity of help isn't the issue, it is just the physical difficulty of getting it to them.
If you want to help the people of Haiti, send money to the relevant disaster relief funds of your country, but praying will not feed and water people, nor rebuild houses.