- 11 updates
British Airways says it is planning to run a full schedule at Gatwick and Heathrow today.
A global IT failure over the bank holiday weekend left 75,000 people with their flights cancelled or delayed.
The airline says it is working to get delayed bags to passengers.
Some were stuck in queues for hours, with many unable to check-in using the mobile phone app causing them to miss flights.
The latest information can be found on their website.
Some British Airways passengers are facing a third day of travel chaos at Heathrow as the airline continues to deal with the aftermath of a global IT crash.
British Airways says it's making good progress in fixing it's major IT systems failure but there has been a knock-on effect.
The problem grounded its planes on Saturday, affecting operations worldwide.
The airline says it operated a full schedule at Gatwick yesterday and is hoping to do the same today.
At Heathrow it expects to run virtually all scheduled long-haul flights, but it says the knock-on effects of Saturday's disruption could still mean some short haul flights are delayed or cancelled.
British Airways has apologised to customers and has urged those due to fly from Heathrow to check its website for updates.
- Watch Sam Holder report:
Thousands of passengers have been affected after British Airways cancelled all of its flights from Heathrow and Gatwick airports.
A problem with the airline's IT systems caused long queues, delays and eventually the cancellation of flights.
Heathrow said it has posted extra staff at the terminals and warned BA passengers on flights before 6pm not to go to the airport.
Footage filmed at Terminal 5 showed long queues at customer services, after passengers had been advised that they would be unable to rebook due to systems remaining down
British Airways has cancelled all flights from Gatwick and Heathrow as computer problems cause disruption worldwide.
Passengers have been told not to travel to the London airports because of "extreme congestion" at the terminals, with all BA planes grounded before 6pm on Saturday.
British Airways says it has cancelled all flights from Heathrow and Gatwick before 6pm today because of a major IT system failure that is causing very severe disruption to flight operations worldwide.