As
IceTrojan suggests, the MPM is in the fare rules. The only way to get the exact rules of the fare you purchased is to call AA. Even before you book, AA.com's fare rules don't show MPM. In my experience, however, the MPM for fares stays consistent over time. Looking at the current fares,:
SJC-NRT:
Code:
PA01 /VIA THE PACIFIC/ MPM 6195
TICKETED POINT DEDUCTION OF 2000 MILES APPLIES
WHEN TRAVEL IS VIA CHI AND/OR DFW
PROVIDED ALL TRAVEL IS ON AA BETWEEN AREA 1 AND AREA 1
TICKETED POINT DEDUCTION OF 800 MILES APPLIES
WHEN TRAVEL IS VIA HNL
It looks like you're travelling via LAX on the way out and ORD on the return, so your MPM for the outbound would be 6195 on the outbound and
8195 (6195+2000) on the return.
For your LHR trip:
Code:
AT01 /VIA THE ATLANTIC/ MPM 6429
TICKETED POINT DEDUCTION OF 550 MILES APPLIES
WHEN TRAVEL IS VIA CHI AND/OR DFW AND/OR MIA AND/OR RDU
PROVIDED ALL TRAVEL IS ON AA WITHIN AREA 1
Outbound connecting at MIA, DFW, and ORD I
think your MPM would be 6429 + 550 x 3 =
8079 miles. The language isn't terribly clear, but I believe there would be a 550 ticketed point deduction for
each of MIA, ORD, and DFW.
On the return through ORD you'd get 6429 + 550 =
6979.
The information above is from ExpertFlyer. Fare rules/routings with MPM are available from Expedia, but Expedia routings will only give you the single MPM number (i.e. 6429), and will not list the ticketed point deductions for connections. I do not know of any source other than ExpertFlyer for the complete MPM routings.