Mexico City is one of the best food cities on earth, full of everything from legendary street-corner al pastor to multi-course tasting menus that cost a fraction of what they would at home. You want to aim for the dry season between November and April so you aren't dodging afternoon downpours while waiting in line for fresh churros.
A typical trip runs about $1500, but you don't have to drop that cash all at once. Let's look at how to time your bookings and spread out the cost so your bank account stays healthy.
Remember that the 0% intro APR for 15 months on purchases and balance transfers is a deadline, not free money. If you still have a balance left when those 15 months are up, the standard interest rate kicks in on what you owe.