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Flight Reliability

AA 2551 · American Airlines

Houston → Dallas–Fort Worth (IAH–DFW)

74
Usually Fine
WanderNerd Reliability Score
88%
Arrive within 15 minutes
16 min
Average arrival delay
4.7%
Cancelled
10 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 92% of the time, against 86% between 3–6 AM.

Monday is the weak spot.

AA 2551 arrived on time 92% of the time on Wednesdays. On Mondays: 81%.

Better than the IAH–DFW route average.

AA 2551 arrived on time 88% of the time, versus 76% across the IAH–DFW route.

Better than the American Airlines network average.

AA 2551 arrived on time 88% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon81%(48 flights)
  • Tue90%(51 flights)
  • Wed92%(51 flights)
  • Thu92%(50 flights)
  • Fri90%(50 flights)
  • Sat82%(49 flights)
  • Sun88%(49 flights)
On-time by departure window
  • 3–6 AM86%(200 flights)
  • 6–9 AM92%(145 flights)
  • 9 AM–12 PM—(3 flights)
On-time trend by month
86%
May

Jun 90% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202583%30
August 202583%30
September 202583%29
October 202584%31
November 202597%29
December 202590%31
January 202692%26
February 202696%28
March 202693%27
April 202679%29
May 202686%29
Departures on time
88%
Diverted
0%
Flights flown
348
Months covered
12

Same route, other flights

Keep nerding

Based on 365 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.