Originally Posted by
PDXPremier
He could get me FAT-SLC, but not SLC-MSP (even tried SNA-PDX-MSP but the PDX-MSP DL flights that showed "available" online were not bookable).
That sounds like married segment availability. DL has applied this to its own awards for about a year (the 11/14 search engine change). It's possible alaskaair.com simply searches by segment, and then can't confirm the availability with DL. Segment-by-segment searching yields false results at delta.com.