I was looking for a comparable AA flight since those happen from time to time. No luck, but did see this UA flight on May 21st (Saturday) for $82.
https://www.google.com/flights/#sear...-IAHPHL0UA1937
Sat, May 21
6:52 am – 9:38 am
Philadelphia (PHL) – Houston (IAH)
United 226 · Economy Class · Airbus A320
Average legroom (30")
3h 46m
Wi-Fi
Stream to your device
No in-seat power
Layover in Houston IAH2h 37m
12:15 pm – 1:32 pm
Houston (IAH) – Dallas (DFW)
United 6296 · Economy Class · Embraer RJ-175
Operated by Mesa Airlines DBA United Express
Average legroom (31")
1h 17m
Wi-Fi
Stream to your device
No in-seat power
Return flight
Sat, May 21
5:06 pm – 6:20 pm
Dallas (DFW) – Houston (IAH)
United 510 · Economy Class · Airbus A320
Average legroom (30")
1h 14m
Wi-Fi
Stream to your device
No in-seat power
Layover in Houston IAH1h 15m
7:35 pm – 11:52 pm
Houston (IAH) – Philadelphia (PHL)
United 1937 · Economy Class · Airbus A320
Average legroom (30")
3h 17m
Wi-Fi
Stream to your device
No in-seat power