First of all, seeing as this is your fifth post, welcome to FT!
I presume this is on United given the ORD-IAD routing.
For what it's worth, $47+ per segment isn't a particularly great segment run. That is pretty widely available with UA given their willingness to add unnecessary connections over outstations. In fact, on the very same date you mention, ORD-PIT-IAD-ABE-ORD is availabe at $175 all-in, ORD-PIT-IAD-LGA-ORD is available for $184 all-in, ORD-ORF-IAD-RDU-ORD is available for $184, and on and on.
If you wait a day, many of these trips are actually $20+ cheaper on Sunday Nov. 22 out of ORD (like ORD-ORF-IAD-PIT-ORD at $166). You can also frequently find 6 segments for this price (say a routing like ORD-PIT-IAD-RDU-IAD-ABE-ORD) with further advance purchase.