"In a continuing wave of technical woes for British Airways (BA), a failure in the airline’s IT system has left passengers unable to check-in, use the mobile app, and its website, forcing the cancellation of more than 100 flights. The airline was forced to cancel and rebook passengers originating from its two London airports, Heathrow and Gatwick..." https://airwaysmag.com/airlines/british-airways-cancels-100-flights-due-to-computer-outage/
"British Airways passengers stranded after IT failures... The airline said the issue was not a global problem, and involved two separate systems - one which deals with online check in, the other that deals with flight departures. The issues are affecting flights across its network but not at every airport, it added..." https://www.bbc.co.uk/news/uk-49261497
"British Airways cancels, delays hundreds of flights after computer glitch A computer glitch delayed or canceled hundreds of British Airways flights Wednesday morning affecting more than 15,000 passengers. The online check-in system crashed, forcing British Airways to cancel 117 flights at Heathrow Airport alone. More than 300 flights have been delayed up to five hours. The company posted a statement to Twitter apologizing for the inconvenience. It's not a global outage, but with so many planes out of position in Britain, flights in other parts of the world are affected, including the United States..." https://www.upi.com/Top_News/World-...-flights-after-computer-glitch/6631565185125/
"British Airways chaos could linger for a WEEK as airline tries to clear backlog sparked by more than 100 flight cancellations - with IT glitch set to cost the company £8million in compensation British Airways suffers yet another IT meltdown - its third in recent weeks - leaving 20,000 people stranded Airline forced to cancel 117 flights to or from Heathrow plus 10 Gatwick services with 300 more jets delayed BA passengers were stuck in the UK, Europe and globally with some walking off planes in protest at failure Social media packed with messages from irate people stranded by BA with holidays and weddings in ruins BA rolled out 'cost effective' IT system in October 2015 - but since then problems has cost more than £100m..." https://www.dailymail.co.uk/news/article-7332991/British-Airways-chaos-linger-WEEK-glitch.html
"British Airways says technical problems at London airports have been resolved..." https://www.reuters.com/article/us-britishairways-technology-resolution/british-airways-says-technical-problems-at-london-airports-have-been-resolved-idUSKCN1UX1RJ?feedType=RSS&feedName=worldNews&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+Reuters/worldNews+(Reuters+World+News)&&rpc=401
BA passengers face delays after 'technical issue' November 21, 2019 https://www.bbc.com/news/business-50500760