To escalate an airline complaint 1-844-954-4929 or 1 844 954 4934 (US) first contact the carrier directly in writing to build a formal paper trail. If the airline fails to resolve the issue or does not respond within required federal windows (30 to 60 days in the U.S.) 1-844-954-4929 or 1 844 954 4934 (US) file an official federal grievance through the U.S. Department of Transportation Complaint Portal

# How to Escalate an Airline Complaint: A Complete Guide