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Flight Reliability

AA 1278 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 1278 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

81%
Arrive within 15 minutes
4 min
Average arrival delay
3.0%
Cancelled
11 min early
Median arrival delay

Based on 335 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(51 flights)
  • Tue86%(50 flights)
  • Wed82%(50 flights)
  • Thu76%(45 flights)
  • Fri91%(46 flights)
  • Sat81%(41 flights)
  • Sun81%(41 flights)
On-time by departure window
  • 6–9 AM89%(179 flights)
  • 9 AM–12 PM75%(57 flights)
  • 12–3 PM85%(33 flights)
  • 6–9 PM56%(55 flights)
On-time trend by month
71%
May

Jun 57% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%28
July 202565%20
August 202586%21
September 202582%22
October 202590%29
November 202590%29
December 202587%31
January 202690%29
February 202689%26
March 202690%31
April 202670%30
May 202671%28
Departures on time
77%
Diverted
0.3%
Flights flown
324
Months covered
12

Keep nerding

Based on 335 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.