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Flight Reliability

AA 678 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 678 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

67%
Arrive within 15 minutes
22 min
Average arrival delay
3.2%
Cancelled
1 min early
Median arrival delay

Based on 443 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(60 flights)
  • Tue57%(61 flights)
  • Wed74%(66 flights)
  • Thu72%(67 flights)
  • Fri67%(66 flights)
  • Sat59%(44 flights)
  • Sun65%(65 flights)
On-time by departure window
  • 9 AM–12 PM92%(74 flights)
  • 12–3 PM87%(76 flights)
  • 3–6 PM54%(125 flights)
  • 6–9 PM57%(153 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
100%
Apr

Jun 53% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202553%58
July 202549%59
August 202547%62
September 202572%60
October 202556%36
December 202569%13
January 202692%37
February 202697%39
March 202683%53
April 2026100%10
Departures on time
63%
Diverted
0%
Flights flown
429
Months covered
11

Keep nerding

Based on 443 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.