Could someone please help me with the schedules of the airlines that fly frmo Boston - Cancun non-stop?

So far, I have Delta, US Airways and JetBlue who fly there, but most of the flights on the schedules require stops in Atlanta, Philadelphia and JFK respectively.

Are there any non-stops? What aircraft do each airline use and how often are the flights? Are they all year round? I want to fly on the 2nd September 07.

Any help appreciated.

Thanks