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Flight Reliability

AA 4254 · American Airlines

Dallas–Fort Worth → BMI (DFW–BMI)87% of its flights flew this route. The rest (ATW–CLT) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
4 min
Average arrival delay
1.7%
Cancelled
6 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AA 4254 departing between 6–9 AM arrived on time 100% of the time, versus 75% between 9 PM–12 AM.

Wednesday is the weak spot.

AA 4254 arrived on time 90% of the time on Tuesdays. On Wednesdays: 81%.

Better than the American Airlines network average.

AA 4254 arrived on time 85% of the time, versus 77% across the American Airlines network.

Slipping a little lately.

AA 4254 arrived on time 86% of the time over the last three months in the data, compared with 92% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(52 flights)
  • Tue90%(50 flights)
  • Wed81%(52 flights)
  • Thu86%(50 flights)
  • Fri86%(51 flights)
  • Sat82%(50 flights)
  • Sun89%(52 flights)
On-time by departure window
  • 3–6 AM—(4 flights)
  • 6–9 AM100%(43 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM84%(281 flights)
  • 9 PM–12 AM75%(28 flights)
On-time trend by month
87%
May

Jun 93% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202573%30
August 202581%31
September 202583%29
October 202577%31
November 202582%27
December 202590%31
January 202690%29
February 202696%28
March 202674%31
April 202697%29
May 202687%31
Departures on time
85%
Diverted
0%
Flights flown
357
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.