Summary
United Airlines announced it will shut down key online services for a few hours early on February 4, 2026, to upgrade its reservation system. During this time, people won't be able to book flights, check in, or view itineraries. United suggests travelers complete any pre-flight tasks before this planned outage.
Key Facts
- United Airlines will conduct an online service outage for system upgrades on February 4, 2026.
- The outage will last from 2:30 a.m. to 6:00 a.m. EDT (1:30 a.m. to 5:00 a.m. CST).
- During these hours, online and mobile booking, check-in, and itinerary retrieval won't be available.
- United has removed early morning departures on this day to ease the upgrade process.
- The system update involves moving the main reservation system (Shares) to a new facility in Chicago.
- Travelers are advised to complete check-ins, bookings, or trip changes before or after the outage.
- United has rehearsed the data migration to minimize disruption.
- The upgrade aims to improve the reliability of United's reservation system.
