I've searched the archives of this board and I don't think this topic has come up before, so I thought I'd raise it.
I'm flying from Dublin Airport this evening, and I thought I'd cycle as it'll probably be not much longer than getting the bus from Smithfield (DTO journey planner says less than one hour which is usually pretty accurate for me).
I rang Dublin Airport and they said that they don't have anywhere to park a bike! I think this is ridiculous -- surely with all the money they've pumped in to multi-storey car parks they can put in a few cycle racks...
According to their website the email for customer service is firstname.lastname@example.org if anyone feels like letting them know what a scandal this is.
Also, if anyone has any tips about where might be a good place to lock a bike in the airport where it won't get blown up by over-zealous security or lifted/vandalised by undesirables I'd really appreciate it. It'll only be there for 24 hours.