Well, I certainly appreciate your problem. I am going to Cancun spring break (3/14), from LA area and round trip airfare can be over $800. It's crazy what is going on with airfare to Mexico… But, there is hope.... Here is what I can tell you. When we first starting looking at airfare 4 months ago, it was much less expensive (under $500), so we went ahead and made the trade to Cancun. After we got the trade, we looked at airfare again, and it was sky high. Since then we have watched the prices almost daily and we are now starting to see the prices come down. I was able to book a one way flight from Cincinnati (for a family member who is going) for ~$265. We are still searching for return flights... Bottom line; you have a long ways to go and flight prices will come down. You have to be patient and keep looking. When the price opportunity comes up, be ready to buy...…. I believe it will happen
As another option, you should also consider some of the less known airlines (Interjet and Aeromexico). these flight are often longer, but much less expensive.
Good Luck!