Flight number record
AA 179
American Airlines · New York to San Francisco
- Route
- JFK → SFO
- Departs
- 07:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 179, check with American Airlines.
AA 179 lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That rests on 365 flights, with a median arrival 9 minutes early.
Key figures
On time
79.8%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
2.19%
National rate is 1.89%
1 hour+ late
5.0%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When AA 179 flies
AA 179 flies JFK to SFO without a single fixed slot. Its most common scheduled departure was 07:30, used on 42 of 365 flights, with 07:55 (39 flights) next.
- Departs 07:3042 flights11.5%
- Departs 07:5539 flights10.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AA 179 runs 10 points worse at 79.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AA 179 next to JFK to SFO
Every carrier on JFK to SFO combined arrived on time 71.4% of the time across 6,800 flights, so AA 179 is 8 points ahead of it. American flew 1,501 flights on the same city pair under all its flight numbers, including this one, and those ran 74.6% on time. Across its whole network American Airlines managed 74.7%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 179 | 365 | 79.8% | 54 min | 2.19% | B |
| All American Airlines on JFK–SFO | 1,501 | 74.6% | 67 min | 2.86% | C |
| All carriers on JFK–SFO | 6,800 | 71.4% | 69 min | 2.57% | C |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 179 quarter by quarter
AA 179 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jan–Mar 2026 at 71.4%, a swing of 22 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202592 flights90.0%
- Jan–Mar 202690 flights71.4%
- Apr–Jun 202691 flights73.6%
- Jul–Sep 202662 flights79.0%
Scale runs 65% to 100%.
By weekday, AA 179 did best on Friday at 84.6% on time and worst on Monday at 70.0%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 179 runs when it is late
AA 179 often beats the schedule: 146 of 357 completed flights, 41%, arrived 15 minutes or more early. The 72 late arrivals split 32 under half an hour, 22 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early146 flights40.9%
- Within 15 min139 flights38.9%
- 15–29 min late32 flights9.0%
- 30–59 min late22 flights6.2%
- 1–2 hours late11 flights3.1%
- 2+ hours late7 flights2.0%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
4 of 33 late departures made up the time and arrived on time, 12% of them. In the other direction, 43 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SFO.
The worst days
Worst days for AA 179
The latest arrival of the period was on 15 March 2026, 4 hours 49 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 March 2026 | 4 hours 49 minutes | Carrier |
| 5 February 2026 | 4 hours 13 minutes | Carrier |
| 2 February 2026 | 3 hours 45 minutes | Carrier |
| 5 January 2026 | 3 hours 6 minutes | National Airspace System |
| 26 December 2025 | 2 hours 47 minutes | National Airspace System |
Delay causes
Why AA 179 runs late
National Airspace System accounts for 49% of the 3,853 delay minutes carriers reported here, and the remaining four split what is left.
- 49%National Airspace System
- 43%Carrier
- 6%Late-arriving aircraft
- 2%Extreme weather
The largest share of delay minutes, 43%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,660 of the 3,853 delay minutes reported here. The split is drawn from 3,853 delay minutes reported on AA 179.
Cancellations sit at 2.19% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
5.0% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 55 minutes, which a normal layover absorbs.
At 2,586 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 365 flights under AA 179 in the data flew JFK to SFO. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AA 179
For a booking, read AA 179 as 79.8% on time with 2.19% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- JFK to SFO, every carrier and departure
- SFO to JFK, the return direction
- American Airlines 177 on the same route60.4%
- Delta Air Lines 668 on the same route71.8%
- Delta Air Lines 667 on the same route55.7%
- American Airlines 15 on the same route73.7%
- JetBlue Airways 115 on the same route80.9%
- Delta Air Lines 679 on the same route72.7%
- John F. Kennedy International (JFK) delay statistics
- San Francisco International (SFO) delay statistics
- American Airlines on-time record
- Every American Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.