US Airways Dividend Miles (Pre-FlightFund Merger) - PHL-BOS Route - Use of CRJ's

Taking a look at the schedule for 7/3 and 7/6 I've noticed a couple things.

The 8:30pm BOS-PHL is back on a CRJ. Previously the last flight of the day was at 7:30pm.

They are now flying a CRJ on a morning PHL-BOS flights.

Interesting.

Regional jets have also infiltrated the BOS-PIT scheduled from time to time over the past year.