Missing a flight can be stressful and cause disruptions to travel plans. Passengers who miss their United flight may face extra fees for changing tickets last minute or booking a new flight. Delays getting to the airport, flight cancellations, and missing connections are common reasons passengers miss their flight. If you have questions or need assistance related to United Airlines Missed Flight, you can visit the Airlines Pet Policy. Additionally, you can contact at 800-864-8331 or +1-844-902-4930 (OTA Skip-Waiting).