????????????, ???????????? ???????????? ???????????????????????? ???????????? ???????????????? ???????? ???? ???????????????????????? ???????????????????????????????? ????????????????????????, ???????????? ???????????? ???????????????????????????? ???????????????????????? ???????????????????????????????????? ???????? ???????????? ???????????????????????? ???????? ???????????? ???????... https://community.hitachivantara.com/discussion/date-changes-on-your-united-airliness-flight-date-change-policy?ReturnUrl=%2fcommunities%2fcommunity-home%2fdigestviewer%3fListKey%3dec96d255-9542-4dc6-85bf-8f1577f5d28f