Ask if you can go to SFO...I think SFO might be a city pair, so they should be able to re-route you there and then catch a flight back.
NOTE - THE CITY PAIRS BELOW ARE CONSIDERED THE SAME POINT-
BWI-WAS FLL-MIA FLL-PBI MIA-PBI BUR-LAX BUR-ONT
BUR-SNA LAX-ONT LAX-SNA ONT-SNA OAK-SFO OAK-SJC
SFO-SJC EWR-HVN EWR-ISP EWR-NYC EWR-HPN HVN-ISP
HVN-NYC HVN-HPN ISP-NYC ISP-HPN NYC-HPN EFD-HOU
EFD-IAH IAD-DCA MDW-ORD LGA-JFK
It is a city pair....