Is it possible (on delta.com) to select different fare classes for different segments? For example, for a trip to London, I want to select Economy (LUT......) for the domestic segment to BOS and then BE (I) class for BOS-LHR. Likewise on the way back.

If not possible on Delta.com can I call the PM line and ask for this?

There is an old thread on this at http://www.flyertalk.com/forum/delta...delta-com.html

Thanks.