Monarch Airlines entered administration this morning after months of attempts to stave off a collapse.
The airline's failure means not only are thousands of customers unable to travel, but also as many as 110,000 more are stranded abroad.
If you are a Monarch customer seeking compensation, or unsure of how this news affects your holiday or travel plans, here's what you need to know.
If you have Monarch Airlines tickets but are in the UK
Can I get a refund?
Any flights booked directly with Monarch Airlines or First Aviation before 14 December 2016 are protected by Atol, the organisation designed to protect travel consumers. The Civil Aviation Authority (CAA) said it is making arrangements for refunds for UK customers as soon as possible, as long as they have an Atol certificate (this should have been sent to you as an attachment with your tickets), and will provide information on how to claim as soon as possible - keep checking this website.
If you booked with Monarch Holidays, you are Atol protected. The CAA sid it is making arrangements for refunds, which it aims to complete by the end of 2017. Again, keep checking its website for information on how to claim.
People who booked tickets after 15 December 2016 are not protected by Atol. However, you may be eligible for a refund from your card issuer, your insurer or PayPal - contact them to find out how to make a claim.
If you booked a Monarch flight or a Monarch Holidays tour through a travel agent, they can tell you whether you are eligible for a refund. The CAA suggests travellers contact them.
If you are abroad
The CAA said it will arrange flights back to the UK for anyone due to travel in the next two weeks (that is on or before 16 October).
The details of your new flight will be published on its "My new flight" website.
In the meantime, its advice to customers is not to go to the airport until they have received details of their new flight. It has also warned because 110,000 customers are thought to be stranded, there may be delays - so it might be worth making arrangements for extra nights.
It is also worth noting that online check-in will not be available. Customers will be required to check in at the airport.
Can I get a refund on extra accommodation while I wait for a flight?
If your original holiday was Atol-protected, you may be able to claim for refreshments and extra overnight accommodation, as long as you keep your receipts.
The CAA says passengers should book reasonably-priced accommodation (although it doesn't specify what that means) if they are delayed overnight. It also lists the following reasonable expenses:
|Length of delay after original Monarch flight||Food & Drink (limit per passenger)||Phone charges (limit per booking)||Car Parking (limit per booking)|
|4 to 8 hours||£15.00||£5.00||£20.00|
|8 to 12 hours||£30.00||£5.00||£20.00|
|More than 12 hours||£45.00 per day||£5.00||£20.00 per day|