Aer Lingus Regional Carrier goes under

That’s sad to hear. And passengers got stranded. This Pandemic appears to have affected several smaller airlines, and a shake-out could still see further casualties in months to come. Before igger airlines could be solidifying their control over the market.

So sad to learn. I flew them to Edinburgh and it was a great flight.

it's only the Regional carrier, Stobart. EI is still flying to the US.

From EI's website:

Further Details of Aer Lingus Regional Replacement Schedule

Aer Lingus has announced further details of its replacement schedule for Aer Lingus Regional customers.

Aer Lingus Regional had been operated by Stobart Air under a franchise agreement. Late on the evening of 11th June, Stobart Air notified Aer Lingus that it was ceasing operations with immediate effect. Teams across Aer Lingus have been working to provide a service for Aer Lingus Regional customers.

Of the twelve routes immediately impacted by Stobart Air's decision to cease trading, Aer Lingus will operate five routes and for at least the next week BA City Flyer will operate two. Alternative operations for the outstanding routes are still being determined.

All impacted customers are being directly contacted and offered details of an alternative flight where feasible. All impacted customers also have the option of a full refund.

Aer Lingus wishes to apologise to Aer Lingus Regional customers who have been affected by Stobart Air ceasing operations.

Daily Operations by Aer Lingus

Belfast - Edinburgh
Belfast - Manchester
Belfast - Birmingham
Dublin - Edinburgh

Daily Operations by BA CityFlyer until 18th June 2021

Belfast - Leeds Bradford
Belfast - Exeter