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The Independent UK
The Independent UK
Ted Thornhill

United Airlines warns of a planned system outage — what to know ahead of your flight

During the upgrade, United passengers won't be able to manage their bookings online - (Getty Images)

United Airlines is conducting a planned overnight technology upgrade affecting its flight reservation system on Wednesday, February 4, between 1.30am and 5am CST (2.30am and 6am EST/11.30pm February 3 to 3am February 4 PST).

As a result, many of its web and app services will not be available during that time, including for United employees.

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