Houston to Mexico City Flights: Booking Guide

Booking checklist

1. Compare United (bags included) vs Aeroméxico/Viva/Volaris (add bag fees) on total price.
2. Confirm which Mexico City airport (MEX vs NLU) your flight uses.
3. For Día de Muertos, Christmas, or Semana Santa, book 2–3 months ahead.
4. Check your passport expiry — no visa needed for US tourists, but the passport must be valid.
5. Buy your Mexico eSIM before you fly.
6. Pre-book your MEX airport transfer (authorized taxi booth or rideshare pickup).
7. Plan an easy first day — 7,350 ft altitude hits sea-level Houstonians.

Fare tips for this route

• Compare total price with bags: Mexican ULCC base fares look cheap until you add checked and carry-on bag fees.
• Tuesday and Wednesday departures are consistently the cheapest on this route.
• Note the airport: most flights use MEX (Benito Juárez). A few use Felipe Ángeles (NLU) — much farther from the city center, so factor the transfer cost and time.
• US passport holders do not need a visa for tourist stays up to 180 days, but you do need a valid passport — check the expiry date now.

For most of the year, 3–6 weeks ahead is plenty. For Día de Muertos (late Oct–early Nov), Christmas/New Year, and Semana Santa (the week before Easter), book 2–3 months ahead. Late January through March (outside Semana Santa) is typically the cheapest window.