In 2026, airlines handle customer complaints through a multi-tiered process that increasingly relies on AI-driven triage and standardized federal mandates. When a passenger submits a complaint via an airline's app, website, or social media, it is typically first processed by a Natural Language Processing (NLP) system that categorizes the issue (e.g., lost luggage, flight delay, or staff behavior). For routine issues like baggage claims, automated systems may offer immediate vouchers or frequent flyer miles as a "service recovery" gesture. More complex or sensitive complaints are escalated to human "Customer Experience" agents. Under 2026 DOT regulations, airlines are required to provide a substantive response within 30 days for most service-related issues. If an airline fails to resolve a complaint to the passenger's satisfaction, the traveler can escalate the case to the DOT's Office of Aviation Consumer Protection, which monitors complaint trends to enforce civil rights and consumer protection laws. Most airlines now prioritize "proactive" compensation, often issuing credits before a passenger even files a complaint if a significant delay is detected.