https://us.community.sony.com/s/question/0D5Dp000023YzUxKAK/step-by-step-18888291467-united-airlines-flight-date-change-policy-process

Visit the 𝓤𝓷𝓲𝓽𝓮𝓭 𝓐𝓲𝓻𝓵𝓲𝓷𝓮𝓼 website and select "Manage Booking" to change your ticket Date. Alternatively, contact 𝓤𝓷𝓲𝓽𝓮𝓭 𝓐𝓲𝓻𝓵𝓲𝓷𝓮𝓼 customer service +1-888-829-1467 (OTA) or +1-888-829-1467 for…