Per this page on aa.com, American AAdvantage members can now earn miles for travel on the following JetBlue routes:
To/From New York City, NY (JFK)
Buffalo, NY (BUF)
Burlington, VT (BTV)
Denver, CO (DEN)
Fort Myers, FL (RSW)
Houston, TX (HOU)
Jacksonville, FL (JAX)
Nantucket, MA (ACK)
New Orleans, LA (MSY)
Phoenix, AZ (PHX)
Portland, ME (PWM)
Portland, OR (PDX)
Richmond, VA (RIC)
Rochester, NY (ROC)
Salt Lake City, UT (SLC)
Sarasota Bradenton, FL (SRQ)
Syracuse, NY (SYR)
Washington, DC/Dulles (IAD)
West Palm Beach, FL (PBI)
To/From Boston, MA (BOS)
Baltimore, MD (BWI)
Buffalo, NY (BUF)
Charlotte, NC (CLT)
Denver, CO (DEN)
Fort Myers, FL (RSW)
Jacksonville, FL (JAX)
New Orleans, LA (MSY)
Newark, NJ (EWR)
Raleigh/Durham, NC (RDU)
Richmond, VA (RIC)
San Francisco, CA (SFO)
Washington, DC/Dulles (IAD)
Washington, DC/Reagan (DCA)
West Palm Beach, FL (PBI)
Apparently miles can be earned on any itinerary that includes those segments, though miles will only be credited for the segments listed above. It’s not clear yet whether elite qualifying miles or elite bonus miles can be earned for these routes, though I think it might just be redeemable miles for the time being.
While this is a nice addition, it’s not a game changer, given the limited number of routes that miles can be earned on, not to mention that we’re most likely just talking about redeemable miles. But miles are miles, and if I have to fly JetBlue, it’s certainly nice to earn at least something for those flights.