Christmas Eve travel plans across the US were hit this morning by a technology issue which led to American Airlines briefly grounding all its flights. Here's a recap:

• As American Airlines delayed flights across the country, the US Federal Aviation Administration announced, external a "nationwide groundstop" for all AA flights
• Some passengers were held at airports while others had to disembark from their planes
• The "groundstop" was lifted after an hour, and flights began taking off again
• American Airlines released a statement saying the problem was caused by a "vendor technology issue", but that the issue was "resolved"
• Although the glitch was short-lived, passengers are continuing to experience disruptions, with departure boards showing delays of up to two hours

With passengers now back in the air, we're pausing our live coverage of this story. Thanks for joining us.

Millions of lives depend on IT we don't think aboutpublished at 14:30 Greenwich Mean Time 24 December

14:30 GMT 24 December

Tom Singleton
Technology reporter

This fleeting outage revives memories of a much more significant IT failure – that caused in July by a rogue software update by the US cybersecurity company CrowdStrike.

The global IT outage that followed affected small businesses, hit health systems and caused travel chaos that dwarfed what we have seen today.

A CrowdStrike executive felt obliged to make a grovelling apology when he was hauled before a US congressional committee to account for what had happened.

We have not seen anywhere near those levels of disruption here – nor is there likely to be a similar mea culpa from anyone at American Airlines. As a reminder, AA blames a "vendor technology issue" for "briefly" affecting flights today.

But this episode is yet another reminder of how millions of people’s lives and plans depend on IT we hardly ever think about – until it goes wrong.

Departure boards at major US airports show many American Airlines flights are delayed in the wake of the carrier's technical problem.

At Ronald Reagan Airport in Washington DC, dozens of flights scheduled to leave between 06:00 (11:00 GMT) and noon were pushed back, with most delays lasting between one and two hours.

A flight to Dallas which was scheduled to leave at 06:30 departed at 08:16, while a 09:26 flight to the same city is delayed by almost two hours.

Most flights in the afternoon are departing on time.

Meanwhile, the departure times for local and international flights at Miami International Airport have also been delayed by up to two hours.

A flight to Barbados, scheduled to leave at 10:35 has been pushed to 12:15, for example

Several American Airlines flights at John F Kennedy International Airport in New York scheduled to leave in the morning were also delayed, including flights to San Francisco, Miami and Las Vegas.

As we've reported, the problem with American Airlines flights seems to be easing.

But this was the moment earlier when passengers on an AA flight in Boston were told to disembark at about 07:00 local time, as news of "a technical issue" came through.

"American Airlines computers are down and we're getting off the plane," one person on the plane at Boston Logan International Airport can be heard saying.

More now from that American Airlines statement.

"A vendor technology issue briefly affected flights this morning," it says.

"That issue has been resolved and flights have resumed. We sincerely apologize to our customers for the inconvenience this morning.

"It’s all hands on deck as our team is working diligently to get customers where they need to go as quickly as possible."

We've just had a statement from American Airlines, blaming a "vendor technology issue". We'll have more on that statement soon.

We've just seen an update on social media, external from the founder of the aviation insights website AirlineGeeks.com, Ryan Ewing.

Posting on X, he says there has been an announcement in ORD Admirals Club, at Chicago O'Hare International Airport, saying the system is "back up".

He adds that agent has "directed passengers to go to gates".

Brandon Livesay
Reporting from New York

Image source, Getty Images

It appears the American Airlines technical glitch has been resolved, with passengers saying they have started to board planes.

But after about an hour-long US-wide groundstop for all of the major airline's planes, there's a lot of travel time to catch up on.

So far the FAA is showing no major delays at US airports, but we'll wait to see how that plays out.

Here on the East Coast it's just after 08:20 and many residents are waking up to another potential problem for travel - a clipper system has brought in winter weather with a fair bit of snow about.

And over on the West Coast, a bomb cyclone has delivered heavy rain, mountain snow and high winds to some areas.

For those travelling today, it may not be a merry Christmas.

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Further to the FAA lifting the nationwide "groundstop", some individuals on social media are reporting that the problem has been resolved.

In a video posted on X, by a CBS reporter at Fort Lauderdale, a gate agent announces a flight to Philadelphia is going to start boarding.

"The system is slowly coming back," she announces from a gate.

Elsewhere, a Washington Post reporter stuck on the tarmac in Washington DC reports his American Airlines pilot has told their flight the outage was "resolved", and flights should be up in the air again soon.

We've just seen another update from the US Federal Aviation Administration.

The latest notice says the "nationwide groundstop" for all American Airlines flights, which we reported a few minutes ago, has now been "cancelled".

Image source, EPA

Today’s incident comes months after American Airlines grounded all its flights due to an IT crash caused by a faulty software update from the cybersecurity firm Crowdstrike.

American Airlines, among other airlines, grounded its flights for much of 19 July.

Delta Airlines was among other operators that were impacted - with more than 42,000 flights were delayed and over 4,700 cancelled worldwide.

The US Federal Aviation Administration says, external there has been a "nationwide groundstop for American Airlines".

The grounding order applies to all airports, according to the message.

It’s the start of a busy Christmas Eve travel day in the United States - and American Airlines has just grounded all its flights.

The disruption is due to a technical issue, according to the airline, which they say they are trying to fix as soon as possible.

We’ll bring you the latest updates right here as we get them.