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Flight Reliability

AA 177 · American Airlines

New York → San Francisco (JFK–SFO)

58
A Little Dicey
WanderNerd Reliability Score
66%
Arrive within 15 minutes
12 min
Average arrival delay
3.3%
Cancelled
0 min
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

AA 177 departing between 9 PM–12 AM arrived on time 79% of the time, versus 63% between 6–9 PM.

Mondays have been rough.

AA 177 arrived on time 78% of the time on Tuesdays and just 52% on Mondays. That gap is worth planning around.

Lagging the JFK–SFO route.

AA 177 arrived on time 66% of the time, versus 76% across the JFK–SFO route.

Lagging the American Airlines network.

AA 177 arrived on time 66% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon52%(50 flights)
  • Tue78%(49 flights)
  • Wed59%(51 flights)
  • Thu58%(48 flights)
  • Fri73%(51 flights)
  • Sat78%(49 flights)
  • Sun66%(50 flights)
On-time by departure window
  • 6–9 PM63%(287 flights)
  • 9 PM–12 AM79%(61 flights)
On-time trend by month
61%
May

Jun 59% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202552%29
August 202584%31
September 202580%30
October 202567%30
November 202561%28
December 202564%28
January 202662%26
February 202673%26
March 202683%30
April 202647%30
May 202661%31
Departures on time
68%
Diverted
0.6%
Flights flown
348
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.