BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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IAH→ATL

United Airlines Houston, TX (IAH) to Atlanta, GA (ATL) reliability

Among 1,257 scheduled United Airlines flights from IAH to ATL, 81.2% arrived on time, 12.0% arrived at least 30 minutes late, and 0.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: United Airlines (UA) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
81.2%arrived on time
12.0%30+ min late
0.7%cancelled
1,257scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late12.0%
60+ minutes late6.4%
Cancelled0.7%
Average arrival+5.8 mincompleted flights

What did United Airlines IAH to ATL record?

United Airlines completed 99.2% of its scheduled reportable IAH to ATL flights in the observation window. 81.2% of all scheduled flights arrived less than 15 minutes late, while 6.4% arrived at least an hour late.

What were United Airlines IAH to ATL disruption rates?

For United Airlines IAH-to-ATL flights, 12.0% arrived at least 30 minutes late, 0.7% were cancelled, and 0.1% were diverted.

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What was the United Airlines IAH to ATL scheduled cohort?

The United Airlines IAH-to-ATL cohort contained 1,257 scheduled flights; 1,247 completed, 9 were cancelled, and 1 were diverted.

Not a prediction.

This is a descriptive historical rate. Schedule changes, seasonal operations and current conditions may differ.