Samana1,
would you be so kind to inform us about the period you are talking about? If it is SEMANA SANTA, well in this case it should be so, anyway AA's fares for MAY are from 378 USD rt with all taxes.
If someone wants to fly on APR10 JFK SDQ and APR17 SDQ JFK it'll be 378 USD as well.
So I think your information is not valid, as always