If your flight is delayed due to airline-related reasons, United may provide meal vouchers, hotel stays, or travel credits. I once had a four-hour delay and confirmed compensation options by calling (831) 298-4213. For weather or uncontrollable delays, rebooking is usually the main option. You can also claim compensation under DOT rules for long delays or cancellations caused by the airline. Always save receipts for eligible reimbursements.