Mexico City in May is the sweet spot. The jacarandas have finished blooming, the crowds are thinner, and the summer rains haven't fully kicked in yet. You can spend your mornings at the Templo Mayor and your nights eating al pastor on a street corner for a few dollars. It is a massive, vibrant place that feels like a dozen cities in one.
A solid trip usually costs about $2,000 once you factor in flights and a nice place to stay. We use the Discover it® Cash Back to manage that cost. It offers a 0% intro APR for 15 months on purchases and balance transfers, which lets you break the total into smaller pieces over time.
This is a payment plan, not a gift. If you still have a balance when the 15 months are up, the standard variable rate will apply to everything you haven't paid off yet.