Thanks for the information. What does TATL mean?

I can fly out of LAX. I was playing around with LAX to BOS to MAD or Ireland if that helps reduce fuel charges. I will hook up my AMEX to Iberia link today if possible. I have left that account just sitting there (Iberia) for about a year. So the 3 months isn't a problem. My goal is to wait until AMEX offers another incentive to transfer to BA and drop more points there then feed into Iberia or other options.

I have heard it can be real hard to string these flights together. Would you book it by leg via round trips, or just all on AirLingus or Airberlin. I do not know either airline, so wasn't sure.