$90 Cheap United flights Houston (IAH) to McAllen (MFE)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines return flights from $179 from IAH to MFE. Affordable one-way fares from $90 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.

For cheap United Airlines fares from George Bush Intercontinental Airport (IAH) to Miller Intl. Airport (MFE), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall price. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.

Jetting off from IAH at 7:30AM UTC-6, the first United Airlines flight to MFE arrives at 9:02AM UTC-6. Flying earlier in the day means you'll be less likely to encounter cancellations or delays.* Prefer a later start? The last United Airlines flight from IAH to MFE departs at 10:15PM UTC-6 and touches down at 11:40PM 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.

A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to jet off from IAH to MFE with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.