- On Saturday morning, its administrator confirmed 277 staff were being made redundant, including many at Belfast City Airport.
- East Belfast MP Gavin Robinson said it came as a "total surprise and shock".
The collapse of regional airline Flybe has been devastating for staff who "felt they had got a new lease of life," an MP has said.
Flybe had only restarted operations last April after collapsing in 2020.
On Saturday morning, its administrator confirmed 277 staff were being made redundant, including many at Belfast City Airport.
East Belfast MP Gavin Robinson said it came as a "total surprise and shock".
Flybe operated 10 routes from Belfast City including services to Heathrow, Manchester, Glasgow and Amsterdam.
When Flybe collapsed in 2020, it was responsible for about 80% of Belfast City's flights. More recently Flybe made up about 14% of flights at the airport.
Belfast City Airport's importance
The first flight out of Belfast City Airport after the collapse had been due to leave for Newcastle at 07:00 GMT on Saturday.
"When I spoke to the airport they told me they first heard about this at 04:30," Mr Robinson told BBC Radio Ulster's Good Morning Ulster programme.
"Belfast City Airport is hugely important and very successful in Belfast terms and in economic terms," he said.
The airport had been in talks with the company about its long-term plans last week, and this was seen as a fresh start for Flybe, added Mr Robinson.
"It was a new beast but gave vital opportunities for those who had worked for Flybe before to get job opportunities," he said
Offers from other airlines welcomed
However, Mr Robinson reiterated that Flybe had covered a small proportion of the routes at the airport and it was engaging with other airlines to fill those gaps.
Overtures from Ryanair and Easyjet to Flybe - both to staff whose jobs were at risk, and customers whose flights had been cancelled - were comforting, he added.
The British Airline Pilots' Association (Balpa) said it had received phone calls in the early hours of Saturday morning from worried Flybe staff.
But the union's leader, Martin Chalk, said there were jobs out there.
How do I get my money back?
The Northern Ireland Consumer Council has raised concerns Flybe was still selling tickets the day before the announcement.
"Certainly the administrators would be aware they were going to court the next day," the council's Richard Williams told BBC News NI.
"That's something we want to put to the Civil Aviation Authority (CAA) about how they go about dealing with things - whether they should be suspending the sale."
Customers who paid by credit card or debit card should be able to get money back.
Regarding credit card purchases of m,ore than £100, customers could use section 75 of the Consumer Credit Act, said Mr Williams.
If a payment was less than £100, or passengers used a debit card, they should contact their debit card issuer and ask for a refund.
British Airways, Easyjet and Ryanair have stepped in and have said they will provide flights at a cheaper cost than usual for those routes for Flybe customers.
The CAA has given out a number and Mr Williams advised customers to call, rather than going through the website, to ensure they receive the reduced price.
The Consumer Council said it was important passengers knew their rights with regards to compensation and assistance, and pointed people to their website.
'Hope not lost'
On Saturday, Matthew Hall, chief executive of Belfast City Airport, said his thoughts were with Flybe employees and passengers affected by "disappointing and unexpected" news.
However, aviation expert David Learmount said hope was not lost for Flybe.
"It doesn't mean it cant be resurrected in the future as it's been resurrected once before," he told BBC News NI.
"The industry is very shaky trying to get back up after Covid," he added.
"It was hit harder than almost any other industry so it could be viable once the business environment picks up again."