Can I get compensation for a delayed flight over 3 hours?

In the US, there is no federal law requiring airlines to compensate passengers for delayed flights, unlike in the EU where EU261 mandates compensation. However, you still have some rights: 1. If your flight is significantly delayed (3+ hours), you are entitled to a refund of your ticket if you choose not to fly. The Department of Transportation requires airlines to offer this. 2. If the delay causes you to miss a connection and you arrive 3+ hours late to your destination, you can request compensation for meals and reasonable expenses. Keep all receipts. 3. For mechanical delays (airline fault), you have a stronger case. Ask the airline for meal vouchers for delays over 3 hours, hotel accommodation if overnight, and compensation in the form of travel credits or miles. 4. File a complaint with the Department of Transportation at transportation.gov/airconsumer. Airlines take DOT complaints seriously and will often offer compensation to resolve them. 5. Check your credit card travel protections - many premium travel cards like Chase Sapphire or Amex Platinum cover delays over 6 hours with up to $500 for meals and lodging. 6. If the delay was over 4 hours due to mechanical issues, write to customer relations (not just customer service) and specifically request compensation. I have received $200-400 in travel credits this way.