Hundreds of flights have been cancelled today at the UK's busiest airports as the fall-out from yesterday's air traffic control glitch continues
The IATA, an industry body, says air traffic control service Nats has "crucial questions to answer about their responsibility for this fiasco"
Nats says the cause of Monday's technical fault is not yet clear and an investigation is under way
The disruption is set to last for several days, Transport Secretary Mark Harper warns, with many aircraft and crew now out of place
The Department of Transport says it will temporarily allow flights to travel at night to clear the backlog
More than a quarter of planned flights in and out of UK airports were cancelled on Monday, according to figures released by analytics company Cirium
A reminder that if your flight is cancelled, you may be entitled to compensation.
Here's a handy graphic to see whether you qualify.
Image source, .
Katy Austin
Business Correspondent
Image source, EPAAviation analytics firm Cirium also provided these numbers for today, but emphasises they were correct at 9am and will be constantly changing:
One man whose flight was disrupted yesterday is Adam Ashall-Kelly - he was due to depart Manchester for Italy, where he's getting married on Saturday.
Adam says he got an in-app message confirming the flight cancellation, and then scrambled to find available seats on alternative flights.
He has managed to book a new flight to Milan tomorrow, but he still needs to find his way further north to Lake Garda, and it means he will miss an important document signing ahead of the wedding.
Adam says he has racked up costs from taxis booked to pick them up from the airport and hotel rooms that remain empty but are still being charged to his card.
He told BBC Radio 4's Today programme he has looked into financial compensation, but airline guidelines were unclear, "so we are not sure where we stand".
People due to fly tomorrow could still face "residual delays" following the air traffic control disruption, according to travel expert Simon Calder.
Thousands of people remain affected by flight cancellations and delays today following yesterday's systems failure.
Calder says that many of today's disruption will be down to planes, crews and pilots being "out of position", and the idea behind cancelling flights will be to allow airlines "to get back to a kind of reset from tomorrow onwards".
"If you are booked to fly tomorrow I would be 95%, maybe even 99%, confident that the flight will go ahead," he tells BBC Breakfast.
Quote MessageHowever, it could well be that there will be residual delays of an hour or two, just take those on the chin."
Simon Calder, Travel expert
Katy Austin
Transport Correspondent
I've just received some figures from aviation analytics company Cirium about the number of flight cancellations yesterday:
One of the many passengers stranded today is Richard Ockenden who is in Portugal and was due to fly from Lisbon to Manchester.
He has been able to re-book a flight, but he told BBC Breakfast it has come at a price.
"The app gave us a new flight but it was from Porto. So I hired a car, booked a hotel on the way up," he says.
"We are quite lucky we got a hotel and not laying on an airport floor."
He acknowledges disruption like this is "pretty rare" and he just feels unlucky to be caught up in it.
The UK's busiest airport - Heathrow - has just given us an update.
Heathrow says that like many other airports this morning, its schedules continue to be affected by yesterday's air traffic disruption.
More than 60 flights have been cancelled at the London airport today, including at least 32 departures and 31 arrivals.
"While the majority of passengers will still be able to travel, there will unfortunately be some disruption on some routes, including flight cancellations," a Heathrow spokesperson says.
"Teams across the airport continue to do everything they can to minimise the impact on passengers and support those whose journeys have been affected.”
They add that passengers should check the status of their flight with their airline before travelling to the airport.
Image source, Getty ImagesFlights in and out of Irish airports are reliant on UK air traffic control - and it looks like the knock-on impact will continue for the coming days there as well.
Here is the latest we have from Cork Airport: "As a result of issues with UK air traffic control yesterday, passengers intending on travelling today [Tuesday] are advised to check the status of their flight with their airline before they travel to the airport."
Aer Lingus adds it expects to face "unavoidable cancellations and delays".
Quote MessageWe are doing everything possible to minimise any further disruption to our customers and we apologise to all those impacted for the inconvenience caused, which is due to circumstances outside of our control
Aer Lingus
Image source, Getty ImagesOfficials at Birmingham Airport have been able to reschedule some flights from Monday as the hub expects to see "full loads of passengers".
In its latest update the airport says: "With some aircraft currently in the wrong locations, it may take some days for all the effects of Monday's air traffic system failure to wash out.
"Customers are advised to monitor the latest information from their airlines."
Image source, PA MediaMore than 80 flights have been cancelled across the UK this morning, FlightRadar24 data shows. It comes after up to 1,000 flights were grounded yesterday and as thousands of passengers remain stranded.
Among them is cricket journalist Rory Dollard and his family, who are stuck in Bergerac, France after being told it could take up to six days to get home after their Ryanair flight was cancelled.
Irene Franklin, 60, said she and her daughter, son-in-law and friends were forced to pay for a hotel last night after their Delta flight from Heathrow to Texas was cancelled at the last minute.
"It was [saying delayed by] two hours, now it's cancelled. It's now not until Tuesday morning at 10," she said.
Daniela Walther who told us said she was supposed to catch a flight from Heathrow for Stuttgart, Germany, yesterday evening, but it was pushed back eight hours.
"I know it's going to be long but on the other hand I don't dare to leave because I don't want to miss information, and I don't know if I don't get it on my phone," she said.
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We've just heard from the transport secretary who warns the bank holiday disruption is set to last several days due to planes being in the wrong place.
Mark Harper tells BBC Radio 4's Today programme the technical issue has been resolved and the cause will be looked at it in more detail.
But he confirms there was no "cyber attack".
"The timing was not helpful at all for people. It has disrupted thousands of people," he adds.
Quote MessageLots of flights were cancelled and it is going to take some days to get people back to where they should be
Mark Harper, transport secretary
Let's get some reaction to the ongoing disruption and why it is expected to last several days.
Aviation expert John Strickland says technical issues like the one experienced on Monday are "very uncommon".
He tells BBC Radio 4's Today programme: "The scale of this one was so significant - instead of minutes it lasted into hours.
"Hours really do have an enormous domino effect."
As a result, he expects flight disruption to "ripple on over the next few days".
Thomas Mackintosh
Live reporter
We're waiting to get official figures from airlines and aviation industry bodies, but information on the FlightRadar24 website gives us a sense of what is happening at some major UK airports this morning.
As of 07:45 BST, data shows more than 50 flights have been delayed and 23 have been cancelled at London Gatwick; while at London Heathrow 29 flights have been cancelled so far.
Six flights have been cancelled this morning at London Luton and 14 out of London Stansted.
At Manchester airport 26 flights have so far been cancelled and in Scotland six flights have been cancelled at Edinburgh Airport.
Image source, PA MediaWe'll be bringing you the latest updates from affected airlines throughout the morning, let's start with EasyJet who have given us an update.
The airline explains some flights this morning have been unable to operate due to aircraft being out of base and Monday's delays having an impact on "crew rest requirements".
“We notified customers in advance and provided the option to transfer their flight for free or receive a refund to help them rearrange their plans," EasyJet says.
Passengers are advised to check the status of their flight for real time information before travelling to the airport.
Image source, PA MediaThe Dollard family are stuck in France after their flight was cancelled
Problems began on Monday, a bank holiday for most of the UK, when the country's air traffic control systems suffered a technical failure just after midday.
While the issues lasted a little over three hours, the impact on air travel into, out of and over the UK has been significant.
According to aviation data firm Cirium on Monday afternoon, more than 230 departing fights were cancelled, which it said was equivalent to 8% of all departures, and 271 of incoming flights (about 9%).
This data does not include knock-on cancellations into Tuesday.
Passengers are entitled to support from airlines, including accommodation, and if a flight is cancelled passengers should be offered a choice of a refund or alternative travel arrangements at the earlier opportunity. We'll bring you more details on your rights soon.
Image source, Getty ImagesHello and welcome to our live coverage as disruption from the bank holiday air traffic control failure continues.
Delays and cancellations are affecting dozens of UK flights already on Tuesday morning.
Holidaymakers described a nightmare bank holiday of travel on Monday, with many suffering hours-long waits for news of when they would get moving.
We'll bring you the latest updates as well as advice on what you can do if you are impacted.