$155 Cheap United flights Houston (IAH) to Mexico City (MEX)

View $155 flight on Thu, Nov 27, 2025Opens in a new window
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$155 Cheap United flights Houston (IAH) to Mexico City (MEX)

Prices were available within the past 7 days and start at $155 for one-way flights and $349 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Nov 27 - Tue, Dec 2
IAH
Houston
MEX
Mexico City
$349 Roundtrip, just found
$349
Roundtrip
just found
Select United flight, departing Thu, Nov 27 from Houston to Mexico City, returning Tue, Dec 2, priced at $349 just found
Flights from Houston (IAH) to Mexico City (MEX)
Origin airport
George Bush Intercontinental
Destination airport
Mexico City Intl.
Airlines serving
Aeromexico, American Airlines, Delta, Frontier Airlines, United, Viva, Volaris, avianca
Popular airline
Viva
Distance
765 mi
Average flight time
2 hours 28 mins

Frequently asked questions

How much is a United Airlines flight from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $349 from IAH to MEX. Affordable one-way tickets from $155 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAH to MEX with United Airlines?
Browse for one-way or round-trip flights to Mexico City in January or September. You could find an affordable fare with United Airlines during these off-peak travel months.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX) with United Airlines?
Search for United Airlines flights from IAH to MEX about one month before you want to leave. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary and fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX)?
United Airlines offers direct flights from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX), with 41 weekly departures. Just apply the "Nonstop" and "Airline" filters while searching on Expedia to find all direct United Airlines flights to MEX.
How long does it take to fly from IAH to MEX with United Airlines?
It takes approximately 2h 26m to fly nonstop from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX) with United Airlines.
Which day of the week has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX)?
If flexibility is what you're after, Saturday offers the most choice for United Airlines flights from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX). You can pick from 6 different departures.
What is the earliest United Airlines flight from IAH to MEX?
Taking off from IAH at 7:34AM UTC-6, the earliest United Airlines flight to MEX lands at 10:05AM UTC-6. Flying earlier in the day means you're less likely to encounter delays.* Not an early riser? The last United Airlines flight from IAH to MEX departs at 7:49PM UTC-6 and touches down at 10:15PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Mexico City?
Most United Airlines flights from George Bush Intercontinental Airport (IAH) to Mexico City land at Mexico City Intl. Airport (MEX). This is the airline's main entry point to this city. It's worth checking Expedia for flights to nearby airports like Hermanos Serdan Intl. Airport (PBC), as prices may be cheaper.
Why fly with United Airlines from IAH to MEX?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to depart from IAH to MEX with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX)?
You'll likely board an Airbus A320 or an Airbus A319 when flying United Airlines from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX). However, keep in mind that a different aircraft may be assigned depending on operational reasons.
Can I change or cancel my United Airlines flight from George Bush Intercontinental Airport (IAH) to Mexico City Intl. Airport (MEX)?
You can usually cancel or reschedule your flight, although there may be additional charges if you made your booking more than 24 hours ago. Want to keep your options open? Make use of Expedia's "Changes included" and "No cancel fee" filters to find flights that won't penalize you if you need to adjust your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for more information.

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