Fred, I am going to sound really stupid is WT+ world traveler +? I assume this is some kind of economy plus? I got all 75% of my lifetime miles with an AA unlimited Airpass I bought in the mid 80's and flew about 400k per year (all first thank God), so I am only familiar with AA jargon. BA had the best rate, around $700 w/taxes for spring break much cheaper than AA, but I am sure these were lowest economy.