Select dates from April to June
PHL-LAX $99 dates
April: 26,27,28
May: 2,3,4,5,9,10,11,12,16,17
June: 1,2,7,8
PHL-LAX $109 dates
April: 23,30
May: 7,14
June: 4
LAX-PHL $99 dates
April: 13,19,20
LAX-PHL $109 dates
April: 16
May: 7,14
There are also some $129 dates.
Someone could fly LAX-PHL for $198 for seder with these dates.
I think this is AA attacking LCC fares in PHL, because they are also selling $49 each way PHL-CVG and PHL-IND which are new Frontier routes starting in May. PHL-LAX is a Spirit route.