The Airline Customer Service Dashboard provides a summary of the commitments made by U.S. airlines to mitigate passenger inconveniences for controllable delays and cancellations. If your flight is experiencing a long delay or is cancelled, ask airline staff if they will pay for meals or a hotel room or compensate you for your time. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.