If you’re facing issues with United Airlines and need to escalate a complaint, there are several steps you can take to ensure your concerns are heard and addressed effectively. First, try resolving the matter through their standard customer service channels by calling their official customer service number at 1-877-827-8493. Clearly explain the issue, provide relevant details such as flight numbers, booking references, and any supporting documentation. If the representative is unable to resolve the matter or you are not satisfied with the response, ask to speak to a supervisor or escalate to the Customer Care team. Additionally, you can submit a formal written complaint through United Airlines’ official website by navigating to the “Feedback” or “Help Center” section. Be concise, professional, and include all pertinent information.

If you're still not receiving a satisfactory resolution, you can reach out via their social media platforms, such as Twitter or Facebook, where public-facing complaints often receive quicker responses. For unresolved complaints, you may also choose to send a written letter to United Airlines’ corporate headquarters, located at United Airlines, Inc., 233 S. Wacker Drive, Chicago, IL 60606. Include a detailed explanation of the issue and the efforts you’ve already made to resolve it.

For more serious disputes, especially those involving financial loss, discrimination, or safety concerns, you can file a complaint with the U.S. Department of Transportation (DOT) through their website. This formal government channel often prompts further investigation by the airline.

Throughout the process, remain calm, persistent, and document every interaction, including names, dates, and reference numbers. Using these steps, and maintaining a professional tone, can greatly improve the chances of having your complaint resolved efficiently by United Airlines. For direct support, don’t hesitate to call 1-877-827-8493 to begin the escalation process.