I'll be in SEA for about five hours in mid-March for a quick meeting, arriving around 1220 and departing around 1730. Routing is IND-SLC-SEA-LAX-IND, with the SEA-LAX leg operated by AS. The Delta PNR shows two separate trips, one IND-SEA, and another SEA-IND. The Alaska PNR seems to pick up Salt Lake as my starting point for the return, showing my AS itinerary as SLC-SEA-LAX-IND.
Will alaskaair.com let me check-in for the return segments (SEA-LAX-IND), or is it going to kick me over to delta.com due to the SLC-SEA leg showing up in their PNR?