Good day to book mex to leon mex
 

I am planing trip around Christmas still awaiting good airfare deals on this limb.

I'm seeing just under $150 on Aeroméxico and Interjet. Christmas is very high demand, so prices may not de line between now and then. Which airline(s) are you searching?

Consider executive class bus as well. By the time you add the times city to airport, airport check and wait, fly, arrive and ground transport to town a bus with much better comfort and seating than an airplane has done downtown to downtown in 5.5 hours.

I see, I agree, I just booked Aero Mexico for 4, for $634, roughly around $150, if it goes down, I hope I get a voucher for the difference.
I did think of Bus and driving but finally came down to flying.