We are a party of 8 who will be arriving on an International Delta flight into Terminal E at Logan, and then connecting on a Delta domestic flight from Terminal A. I have been trawling through the web to try and get a definitive answer as how we should make the connection, but thought I'd double check with the people who will know...

We originally had 3 hours to make the transfer but Delta have been changing the flight times on a regular basis and this has been nibbling away at this time, so now we're down to 2 and a half hours, so...

When we clear immigration and customs in Terminal E, I assume we then recheck our hold bags and exit landside into the main departures concourse?
Is it correct that we should then walk or get the Airport Shuttle bus to Terminal A?
I have seen reports of airside transfers from A to E, but assume they don't go the other way and what ever we do, we need to go back through TSA security when we get to Terminal A?

Any help in clarifying things would be greatly appreciated. 👍