united 𝟐𝟒-𝑯𝒐𝒖𝒓𝒔 𝐜𝐚𝐧𝐜𝐞𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐩𝐨𝐥𝐢𝐜𝐲 𝐚𝐥𝐥𝐨𝐰𝐬 𝐲𝐨𝐮 𝐭𝐨 𝐜𝐚𝐧𝐜𝐞𝐥 𝐨𝐫 𝐜𝐡𝐚𝐧𝐠𝐞 𝐲𝐨𝐮𝐫 𝐟𝐥𝐢𝐠𝐡𝐭 𝐛𝐨𝐨𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡𝐢𝐧 𝟐𝟒-𝑯𝒐𝒖𝒓𝒔 𝐨𝐟 𝐩𝐮𝐫𝐜𝐡𝐚𝐬𝐞 𝐰𝐢𝐭𝐡𝐨𝐮𝐭 𝐢𝐧𝐜𝐮𝐫𝐫𝐢𝐧𝐠 𝐚𝐧𝐲 𝐟𝐞𝐞𝐬 +𝟭^𝟠𝟠𝟠 𝟠𝟚𝟡 𝟙𝟜𝟞𝟟 {united-𝐌𝐚𝐧}. This applies to all flight bookings made through united, provided the cancellation or change is made at least seven days before the scheduled departure.
https://communitysandbox.more4apps.com/help/s/question/0D5Pu00000JidNhKAJ/refundcancellationwhat-is-unitedcancellation-and-refund-policy