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Flight Reliability

AA 4034 · American Airlines

Dallas–Fort Worth → MLI (DFW–MLI)94% of its flights flew this route. The rest (CMH–MIA) are included in these numbers.

82
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
4 min
Average arrival delay
1.8%
Cancelled
6 min early
Median arrival delay

Based on 278 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

AA 4034 departing between 9 PM–12 AM arrived on time 83% of the time, versus 72% between 6–9 AM.

Sunday scaries are real for this one.

AA 4034 arrived on time 90% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.

A bit ahead of the American Airlines network.

AA 4034 arrived on time 81% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon87%(39 flights)
  • Tue90%(38 flights)
  • Wed85%(39 flights)
  • Thu87%(38 flights)
  • Fri74%(39 flights)
  • Sat77%(39 flights)
  • Sun71%(41 flights)
On-time by departure window
  • 6–9 AM72%(18 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM81%(110 flights)
  • 9 PM–12 AM83%(143 flights)
On-time trend by month
82%
May

Jun 80% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202567%30
August 202577%31
September 202579%29
October 202594%31
November 202576%29
December 202587%30
January 202687%30
February 202691%11
May 202682%22
Departures on time
84%
Diverted
0%
Flights flown
273
Months covered
10

Same route, other flights

Keep nerding

Based on 278 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.