<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by bagold:
I'm looking at a ticket and it is cheaper to connect (SEA-ORD-DFW) than take a direct (SEA-DFW) flight.
Is it easy to ask to be put on the direct flight when I check-in?</font>
on the day of travel, ask to be put on the nonstop when you check in [suitably early for both flights!]. If there's room, they will ordinarily do it no questions asked.