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United Airlines System Outage Notice
United Airlines will conduct a system upgrade on February 4 from 1:30 a.m. to 5:00 a.m. (CT).
During this time, reservation search, check-in, ticketing/changes, purchases, MileagePlus access, and related services will be unavailable.
If you attempt to access these services during the outage, an informational message will be displayed.
We appreciate your understanding.