Now my recommendation about LAX was from a pure MR point of view. Should you want to see California, You can do OPEN JAWS as long as your transcon flights are Non Stop to BOS.

You could f.ex do SAN(diego)-BOS - SFO ; SFO-LAX-BOS-SAN or any other combination.

If you have the time driving on the Pacific Coast Highway between LA and SF is a world-class experience.