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Flight Reliability

AA 6390 · American Airlines

Colorado Springs → Dallas–Fort Worth (COS–DFW)98% of its flights flew this route. The rest (DFW–COS, COS–ORD) are included in these numbers.

77
Usually Fine
WanderNerd Reliability Score
83%
Arrive within 15 minutes
19 min
Average arrival delay
1.9%
Cancelled
13 min early
Median arrival delay

Based on 370 historical flights. Data through May 2026.

What the data says

Skip Saturday if you can.

AA 6390 arrived on time 90% of the time on Sundays. On Saturdays: 77%.

A bit ahead of the COS–DFW route.

AA 6390 arrived on time 83% of the time, versus 78% across the COS–DFW route.

A bit ahead of the American Airlines network.

AA 6390 arrived on time 83% of the time, versus 77% across the American Airlines network.

Slipping a little lately.

AA 6390 arrived on time 81% of the time over the last three months in the data, compared with 85% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue86%(51 flights)
  • Wed86%(50 flights)
  • Thu79%(53 flights)
  • Fri82%(54 flights)
  • Sat77%(51 flights)
  • Sun90%(51 flights)
On-time by departure window
  • 6–9 AM83%(346 flights)
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM—(7 flights)
On-time trend by month
86%
May

Jun 79% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202593%30
August 202571%31
September 202590%30
October 202581%31
November 202587%30
December 202587%31
January 202679%29
February 202689%27
March 202668%28
April 202690%30
May 202686%35
Departures on time
84%
Diverted
0.5%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 370 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.