Originally Posted by
SamuelS
Be careful.
I had a DL coded AS operated flight for last leg SEA-YYC. I was not allowed to SDC because it was operated by another carrier other than DL. I'm not sure if I was given bogus info or whether this is correct, but even if you can SDC off other airline operated flights, expect some resistance when you call in.
My understanding of the rule is that you can SDC from another carrier's DL-coded flight to a DL-operated flight only, but it does seem that some agents think that no SDC is allowed if another carrier is operating anything.