Originally Posted by
etiene
I don't think searching as round trip makes any difference - but you can't search flight by flight as married segment availability is used. It's a pain!
The other thing I'm unsure on is what point of sale they will be using when rebooking - availability can be quite different.
Point of origin matters for many airlines (ie EK, QR, AF for sure) rather than the POS, however, I do not know how this is applied by DL. Second point i am not sure about is how this works if you try to rebook you trip while in a stopover point (in case DL applied point of origin discrimination).