Aer Lingus considering axing BHD - LHR
https://www.bbc.co.uk/news/uk-northern-ireland-63986215
"As an EU carrier, regulatory changes arising from the withdrawal of the UK from the EU, have had an impact on Aer Lingus' traffic rights as a carrier within the UK market and, in particular, on the operation by Aer Lingus of the Belfast-London Heathrow route.
"Despite constructive discussions with the relevant authorities in the UK, we have, to date, been unable to identify a viable solution.
"We have therefore advised our Belfast-based staff of the likelihood that we will have to cease our Belfast-London Heathrow operation (which we have operated for 15 years), with effect from 26 March 2023, leading to the closure of our Belfast base."