Delta, United and American Airlines flights delayed due to communication problem

All Delta, United and American Airlines flights were delayed Friday morning due to a communications problem, the Federal Aviation Administration (FAA) said.

The FAA announced the suspension of all flights from these airlines, regardless of their destination. It is currently unknown how long the delay will last, but an update is expected by 5 a.m. ET. The shutdown follows a massive Microsoft outage that paralyzed Frontier Airlines flights for several hours on Thursday. Frontier said its systems were affected by the outage and offered compensation to passengers. Other airlines, such as Allegiant and SunCountry, have also reported difficulties with online booking and check-in services.

Delta, United and American Airlines are among the largest airlines in the US, serving millions of passengers each year. Such flight cancellations can have serious consequences for thousands of passengers, underscoring the importance of reliable communication systems in the aviation industry.

On Friday morning, the FAA also announced the grounding of all Allegiant flights. On the Azure software status site, Microsoft said that customer service in the central US was disrupted around 6 p.m. ET, affecting service management operations and service availability. The company noted that it has determined the cause and is working on its elimination.

Communications problems and a massive Microsoft outage caused significant flight delays for several major US airlines. Passengers are advised to follow updates from their airlines.