An IT systems failure hit thousands of passengers on Saturday including many Irish travellers.
British Airways also suffered large system outages in July and September 2016, the second of which led to huge delays across the airline's route network, from their home in London all the way to Los Angeles and Nassau, among others.
British Airways has cancelled all its flights from London's two main airports after a global computer system outage caused massive delays and left planes stuck on runways.
With some BA services already cancelled this morning, both BA and Heathrow warned passengers not to come to the airport without a confirmed booking for a flight today.
It is expecting to run a "near-normal" service at Gatwick and most flights from Heathrow to run as normal on Sunday. Earlier this month, the British Airways website was offline for many hours, while its new "FLY" check-in and flight management system has also suffered major outages.
The airline has apologised for the "huge disruption" the computer failure caused and said that engineers were continuing to work hard to restore its services.
In September past year BA apologised to passengers for check-in delays caused by operational glitches that delayed flights at Gatwick and Heathrow, in a repeat of a similar incident that affected London-area flights for the airline last July. Anyone traveling after that time has been instructed to check their flight status before coming to the increasingly congested airports.
British PM boycotts TV debate as election looms
The tactic could lift her party's ratings, but probably not enough to give her the decisive mandate she sought. Britain votes in a parliamentary election on Thursday June 8.
American Airlines, which operates code-share flights with BA, said it was unaffected.
The airline tells CBS News correspondent Kris Van Cleave it has no evidence the disruption is the result of a cyber attack.
Payments will include £200 per night for lodging, £50 round trip between the airport and the hotel, and as much as £25 for refreshments, according to leaflets from the company.
"Working on this as a matter of priority, but if your flight is departing tomorrow you may have to complete check in at the airport", it tweeted to one customer. He said passengers on planes that have landed at Heathrow were unable to get off because there was nowhere to park.
"We are extremely sorry for the inconvenience this is causing our customers during this busy holiday period". "If the delay was caused by an "extraordinary circumstance", you will not be entitled to compensation", the aviation authority says.
Another traveler, PR executive Melissa Davis, said her BA plane was held for more than 90 minutes on the tarmac at Heathrow on a flight arriving from Belfast.
Comments