crispos:Thanks Dan. The flight I have is $371 Canadian on Skyservice and I will take the bus and ferry for a total of 155 pesos or about $13 US one way for a total of about $300 US.
I don't think you can get that price from USAir. But thanks for the heads up.
I think what Texas Diver was driving at is since you are already dealing with the stress of the real estate deal, and since the price of the plane ticket (even if it is 2X or 3X that $300) is small compared to the price of a house, it might be worth the extra expense to bite the bullet and spend the extra cash to fly into Cozumel (Continental has a flight, too, with a stop in Houston) to ensure that you make your closing meetings without having to worry about late night transportation from CUN to CZM.