Thousands stranded as BA technical glitch hits three London airports
British Airways is urging customers to allow extra time at airports this morning due to system failures causing problems checking passengers in online and getting information to pilots.
Passengers have complained on social media about long queues, flight delays and the BA app crashing.
BA said it had been forced to revert to checking in passengers manually but it has had to delay some flights as a result.
It said it was experiencing problems at Heathrow, Gatwick and London City airports.
The Independent is reporting that, so far, 86 flighs have been cancelled at London Heathrow and 16,000 passengers have been affected.Others are experiencing two-hour delays. It said there were also some delays at Gatwick, where 10 flights have been cancelled so far.
In a statement, the airline said: "We are very sorry to our customers for the disruption to their travel plans.
"We are working as quickly as possible to resolve a systems issue which has resulted in some short-haul cancellations and delays from London airports.
"A number of flights continue to operate but we are advising customers to check ba.com for the latest flight information before coming to the airport, and to le’‹ave additional time.
"We are offering customers booked on short-haul services departing from Heathrow, Gatwick and London City today, the opportunity to rebook to another day."
Passengers can rebook flights for departures between August 8 and 13. Those whose flights have been cancelled are being offered refunds or alternative services.
BA said the issue was not a global outage, but a problem with two separate systems – one which deals with online check in, the other that deals with flight departures.
Linsey McNeill
Editor Linsey McNeill has been writing about travel for more than three decades. Bylines include The Times, Telegraph, Observer, Guardian and Which? plus the South China Morning Post. She also shares insider tips on thetraveljournalist.co.uk
Vegas’s Billion-Dollar Secrets – What They Don’t Want Tourists to Know
Visit Florida’s New CEO Bryan Griffin Shares His Vision for State Tourism with Graham
Chicago’s Tourism Renaissance: Graham Interviews Kristin Reynolds of Choose Chicago
Graham Talks with Cassandra McCauley of MMGY NextFactor About the Latest Industry Research
Destination International’s Andreas Weissenborn: Research, Advocacy, and Destination Impact
Graham and Don Welsh Discuss the Success of Destinations International’s Annual Conference
Graham and CEO Andre Kiwitz on Ventura Travel’s UK Move and Recruitment for the Role
Brett Laiken and Graham Discuss Florida’s Tourism Momentum and Global Appeal
Graham and Elliot Ferguson on Positioning DC as a Cultural and Inclusive Global Destination
Graham Talks to Fraser Last About His England-to-Ireland Trek for Mental Health Awareness
Kathy Nelson Tells Graham About the Honour of Hosting the World Cup and Kansas City’s Future
Graham McKenzie on Sir Richie Richardson’s Dual Passion for Golf and His Homeland, Antigua
ADS PRO 
Phocuswright reveals the world's largest travel markets in volume in 2025
Higher departure tax and visa cost, e-arrival card: Japan unleashes the fiscal weapon against tourists
Cyclone in Sri Lanka had limited effect on tourism in contrary to media reports
Singapore to forbid entry to undesirable travelers with new no-boarding directive
Euromonitor International unveils world’s top 100 city destinations for 2025