I just don’t see what pre clearance is going to attract for EDI?
If there was a new, modern terminal being built then it could properly be done. It works at Dublin because that is a proper network hub, and tiny town Shannon does not have a huge need for space - more of a perk there. Same goes for BFS to an extent - if pre clearance covers a gate or two. A perk for any potential future US link.
I think EDI should look at this from the same perspective of MAN - not worth the space, not worth the investment. El Dorado isn’t just going to magically appear..
As for the SAS/Skyteam argument, that’s talking single digits per week. I would much rather fly direct from ARN then route ARN-EDI-XXX. I’m sure the added connection time would be much longer than these immigration queues?
What EDI really should’ve been chasing is EIUK though. A proper based carrier which would benefit from being in a home market (IAG/OW).