Flight cancellation

Flight cancellation occurs when an airline cancels a scheduled flight for a certain reason. When flights are cancelled, passengers may be entitled to compensation due to rules obeyed by every flight company, usually Rule 240, or Rule 218 in certain locations. This rule usually specifies that passengers may be entitled to certain reimbursements, including a free room if the next flight is the day after the cancelled one, a choice of reimbursment, rerouting, phonecalls, and refreshments.

From http://en.wikipedia.org/