I'm with Mah4546 on this one... his theory is right on, IMO, and goes hand in hand with AA's capacity cuts into EZE. That MIA-EZE-MIA turn is absolutely packed, particularly on the two nights a week that American only operates one 767 into or out of EZE.
DFW will take the strain off MIA and should allow American to hold its own against Delta, which has been flying light loads lately (~65-70%) but I'm told VERY nice yields, that in addition to the revenue from what's on the lower deck.
I'm going to go out on a limb here and guess that American will use a Pacific configured 777 on this run. They've got more of 'em than they know what to do with and they're running into problems with disappointed customers by subbing them in on flights to Europe. This is also one flight that can really take advantage of the amount of lower deck space and lift that American's heavy 777ERs provide.
That said, I would have liked to see DOT grant Delta JFK-EZE. Yes, I'm just a bit biased, but Delta has wanted this for awhile and, with the demise of UAL's JFK-EZE flight, AA has no competition in this market. That's the only downside I can see.
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