$59 Cheap United flights Houston (IAH) to Atlanta (ATL)

You'll find affordable round-trip United Airlines flights from $117 from IAH to ATL by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $59 for a one-way trip.**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.

To find cheap United Airlines fares from George Bush Intercontinental Airport (IAH) to Hartsfield-Jackson Atlanta Intl. Airport (ATL), start searching one to three months before your intended 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 affect how much you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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.

Departing IAH at 7:35AM UTC-6, the first United Airlines flight to ATL arrives at 10:43AM UTC-5. Traveling early means you're less likely to encounter delays.* Not an early riser? The last United Airlines flight from IAH to ATL departs at 6:50PM UTC-6 and touches down at 10:02PM UTC-5.*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.

With a rewarding loyalty program, United Airlines is a top choice for many passengers heading from IAH to ATL. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.