United Airlines has issued a warning to passengers regarding a significant system blackout scheduled for early February 2026, which is set to impact a wide range of digital services essential for flight management.
Details of the Planned Technology Upgrade
The airline is undertaking a planned technology upgrade to its flight reservation system, with the maintenance window set for February 4, 2026, between 2:30 a.m. and 6 a.m. Eastern Time. During this period, many of United's web and app services will be temporarily unavailable.
Services Affected by the Outage
Passengers will experience disruptions to several key functions, including:
- Online booking and cancellations for new flights
- Check-in processes and seat selections
- Flight changes and upgrades
- Viewing or retrieving boarding passes via the app
This means that travellers will be unable to perform these actions digitally during the outage, potentially causing inconvenience for those with imminent travel plans.
Advice for Passengers
To mitigate the impact, United Airlines advises passengers to complete any necessary tasks ahead of the blackout. Recommendations include:
- Finalising bookings, check-ins, or trip amendments before the maintenance window
- Downloading or printing boarding passes in advance
- Anticipating longer waiting times at airport counters for check-in, as flights will operate normally but with reduced digital support
By taking these steps, travellers can help ensure a smoother experience despite the temporary service disruption.
Background and Purpose of the Upgrade
The upgrade involves relocating United Airlines' booking system from an older data centre in North Carolina to a new facility in Chicago. This move is aimed at improving the overall reliability and performance of the airline's technological infrastructure, which could lead to enhanced service in the long term.
While the short-term inconvenience is acknowledged, the airline emphasises that this planned outage is a necessary step towards modernising its systems and providing a more robust platform for future operations. Passengers are encouraged to stay informed and plan accordingly to avoid any last-minute hassles.



