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Flight Reliability

AA 179 · American Airlines

New York → San Francisco (JFK–SFO)

82
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
6 min early
Average arrival delay
2.5%
Cancelled
14 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

AA 179 departing between 6–9 AM arrived on time 87% of the time, versus 74% between 9 AM–12 PM.

Monday is the weak spot.

AA 179 arrived on time 90% of the time on Fridays. On Mondays: 78%.

Better than the JFK–SFO route average.

AA 179 arrived on time 84% of the time, versus 76% across the JFK–SFO route.

Better than the American Airlines network average.

AA 179 arrived on time 84% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon78%(49 flights)
  • Tue82%(50 flights)
  • Wed88%(51 flights)
  • Thu85%(52 flights)
  • Fri90%(51 flights)
  • Sat80%(51 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 6–9 AM87%(271 flights)
  • 9 AM–12 PM74%(85 flights)
On-time trend by month
74%
May

Jun 90% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202594%31
August 202597%31
September 202593%30
October 202590%31
November 2025100%30
December 202579%29
January 202659%27
February 202665%26
March 202687%31
April 202673%30
May 202674%31
Departures on time
91%
Diverted
0%
Flights flown
356
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.