About 1 in 7 AA 2551 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (14%); 4.1% were cancelled. The typical flight landed 13 minutes early.
AA 2551: IAH → DFW
Scheduled to leave Houston at 6:00 a.m. local time. Over the past year it arrived on time 86% of the time (365 flights), in line with other AA flights on the route at that hour (87%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 77% |
| Tuesday | 52 | 90% |
| Wednesday | 52 | 92% |
| Thursday | 52 | 90% |
| Friday | 52 | 87% |
| Saturday | 52 | 81% |
| Sunday | 52 | 87% |
Why it was late
All flights IAH → DFW · Connecting off AA 2551? Check the risk
Questions
How often is AA 2551 from IAH to DFW late?
American Airlines 2551 from Houston, TX to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 14% of 365 scheduled flights between September 2025 and August 2026. 4.1% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.