Aer Linguis
 

We are taking our first trip to Ireland nonstop from Chicago to Dublin. Does anyone know what alliance they belong to? I can't seem to find it anywhere and I don't want to miss out of all those miles. Thanks for your help - I would be considered a newbie here I am sure.

They aren't in any alliance, that may change in the near future though.

They do code share with other carriers though.

Info is on their website. A good start might be the correct spelling of their name http://www.aerlingus.com/

Unless you are talking about the little known Italian Low Cost Carrier, Aereo Linguini

That flies non-stop ORD-DUB? ;)

Even though they aren't part of any alliance, they do have frequent flyer agreements with the following airlines:
Since you're a self-admitted newbie, you may need the following translation:
American Airlines
Finnair
British Airways
Cathay Pacific
DBA (defunct, now part of Air Berlin)
Aer Lingus
Iberia
Lan Airlines
Lan Peru
Qantas
Aer Arann
Royal Jordanian
Lan Ecuador
Lan Argentina

I'd suggest signing up for American Airlines' mileage program and using your AA number for these EI tickets.

But might also consider BA if will be a regular commuter. BA ff to fly AA can be less than AA ff to fly AA at times. Wierd, but true.

You no longer earn AA miles on Aer Lingus flights - that agreement stopped sometime ago.

This is the full list of AA partners:

http://www.aa.com/i18n/AAdvantage/pa...n.jsp?from=Nav

Thanks for pointing that out! I am *not* happy that Amadeus fed me false info. As I Googled, I found that you can also accrue (75%) UA MP on EI. Googling confirmed BA accrual (measly 25% on discount economy).