IAH to ATL Flight Guide: Direct Routes from Houston to Atlanta
Cheapest flight found
$123
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: IAH → ATL
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$123
Highest Fare
$211
Median Fare
$146
Price Spread
$88
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $123)
Most expensive month: July 2026 (from $211)
Biggest price drop caught: $51 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Houston to Atlanta range from $123 to $211, a $88 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $51 between hourly checks on this route.
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From
Houston (IAH)
To
Atlanta (ATL)
Airport Information
Houston (IAH)
George Bush Intercontinental Airport (IAH) serves as the primary international gateway for the Greater Houston area and stands as one of the busiest airports in the United States. Located approximately 23 miles north of Downtown Houston, the airport features five terminals connected by an underground train and an elevated Skyway. As a premier hub for United Airlines, IAH offers world-class amenities, including numerous lounges, diverse Tex-Mex dining options, and extensive duty-free shopping for those heading out on this popular domestic corridor.
Atlanta (ATL)
Hartsfield-Jackson Atlanta International Airport (ATL) holds the title of the world’s busiest airport by passenger traffic, serving as the central nervous system for Delta Air Lines. Located just seven miles south of Atlanta's central business district, the airport is remarkably efficient despite its size, utilizing a linear concourse design connected by the underground Plane Train. Travelers arriving from Houston can quickly access the city via the MARTA rail system, which has a station directly inside the domestic terminal, providing a fast link to Buckhead and Downtown.
Frequently Asked Questions
How long is the flight from IAH to ATL?
The average flight duration for a direct trip from Houston to Atlanta is approximately 2 hours and 5 minutes, covering a distance of roughly 700 miles.
Which airlines fly nonstop from IAH to ATL?
Major carriers including United Airlines, Delta Air Lines, and Spirit Airlines offer frequent nonstop service between George Bush Intercontinental and Hartsfield-Jackson.
Is there a time difference between Houston and Atlanta?
Yes, Houston is in the Central Time Zone (CT), while Atlanta is in the Eastern Time Zone (ET), meaning Atlanta is one hour ahead of Houston.
What is the best way to get from ATL airport to downtown Atlanta?
The MARTA (Metropolitan Atlanta Rapid Transit Authority) train is the most cost-effective and efficient method, with the airport station located at the end of the Red and Gold lines.
How early should I arrive at IAH for a domestic flight to Atlanta?
It is generally recommended to arrive at George Bush Intercontinental at least two hours before your scheduled departure to account for security screening and terminal navigation.
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