How Can I Change My United Flight?

Travelers can rebook their United flight within 24 hours of their original travel date without incurring change fees. Travelers can rebook their United flight itineraries after 24 hours for a fee if they need to change their travel plans. To initiate rebooking, contact Rebook United Flight at 800-864-8331 or 1-844-902-4930 (OTA Skip-Waiting), and a customer service agent can assist with reissuing tickets according to United's fare rules and flight availability for modified travel within the 24-hour window.