https://**********veracode.com/s/question/0D5Uf00000I75S4KAJ/-88829146-what-is-united-cancellation-policy-available247 Yes, United provides refunds when you change your reservation up to 24 hours prior to purchasing (USD) +????-????????????-????29-1467, or to number:$ .ೃ࿔ ✈︎ *:・ +???? ????????????-????29-1467???? . After this time, charges or fees may be charged depending on the type of fare. In fact, United does offer free cancellation for many bookings.