How many planes does Monarch Airlines have, where did the airline fly to and is it Atol protected? Destinations, routes and holidays

 for confirmation of their new flight details - which will be available a minimum of 48 hours in advance of their original departure time

All affected customers should keep checking  for more information

The CAA also has a 24-hour helpline: 0300 303 2800 from the UK and Ireland and +44 1753 330330 from overseas

You should expect to be flown as close as possible to your planned departure dates, no earlier, and prepare for disruption to journeys.

There will be no online check-in. You will be issued with a new flight and new boarding card and will not be able to check in with your old flight details

Is Monarch Atol protected?

If you booked a package holiday through Monarch you will be Atol-protected.

If you've only booked your flights with Monarch then you're unlikely to be protected.

But if you've booked your flights with a credit card (and have paid more than £100 but under £30,000) then you will be protected under Section 75 of the Consumer Rights Act.

If the worst did happen then you’d have to chase your card provider for a refund.

If you paid by debit card then you may be covered under Chargeback - this means your card company would chase the collapsed firm for the cash.

The rules on this vary vastly, but you’d usually have at least 120 days to make a claim to your bank.

What about Monarch customers abroad?

The Government has asked the Civil Aviation Authority to charter more than 30 aircraft to bring customers currently overseas back to the UK.

The aim is to fly every customer back to the UK in the next fortnight at no extra cost to passengers.

Transport Secretary Chris Grayling, who has ordered Britain's biggest ever peacetime repatriation, said: "Nobody should underestimate the size of the challenge, so I ask passengers to be patient and act on the advice given by the CAA."

Vulnerable passengers - including unaccompanied minors - will be prioritised.

Where did Monarch fly to and how many planes does it have?

Last year, Monarch carried 6.3 million passengers to 40 destinations from Gatwick, Luton, Birmingham, Leeds-Bradford and Manchester airports.

At the time it went into administration the airline had a fleet of 35 planes.

Monarch lost a large chunk of its annual revenue following terror attacks in Turkey and Egypt.

They were forced to compete on busier routes to Spain and Egypt, which caused prices and profits to fall.

As well as popular tourist hotspots such as Alicante and Rhodes, the airline also flew seasonal flights to Venice, Paphos and Friedrichshafen.