I found a bug today when trying to book a same day, multi city trip.
Trying to book SLC-DEN-ORD same day. SLC-DEN early morning then DEN-ORD evening (same day). The website keeps trying to force me into a through fare as if I'm connecting when all I want is to book two separate legs. I know I could book two distinct one way tickets, but that defeats the purpose of multi city. Would be nice for the website to provide the flexibility to provide fares as a connection (under 4 hours) or as two distinct flights (outside of 4 hours).