AA166

Between its first and last recorded date on SFO → JFK, AA166 averaged about 6 operations a week (606 in 665 days, cancelled ones included).

AA166 arrived on time 69.6% of the time, against 79.9% for all SFO → JFK flights, so this departure is 10.3 percentage points worse than the route as a whole. Against American Airlines’ own flights on this route it is 12.5 points worse.

Source: US DOT Bureau of Transportation Statistics · 606 operations, November 2024 – August 2026 · If AA166 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

This flight runs unusually far behind the carrier's own average on this route, worse than 92% of 12,152 comparable flight numbers.

69.6% on time for this specific departure, against 82.1% for the same carrier's other flights on this route.

Source: FlyerIntel analysis of US DOT BTS data · November 2024 – August 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.

AA166 has cancelled 2.64% of its scheduled departures (16 of 606), against 1.47% for all SFO → JFK flights — this specific departure cancels 1.2 percentage points more often than the route as a whole. Different flight numbers on the same route can carry different aircraft, crews and schedules, so this is a fact about AA166 specifically, not about the route it flies.

13.0% of AA166’s arrivals were an hour or more late, against 7.7% across SFO → JFK, so the long delays are more common on this number than on the route.

Source: FlyerIntel analysis of US DOT BTS data · November 2024 – August 2026

Share of the delay minutes US DOT attributed to each cause for AA166 on SFO → JFK. Only delays of 15 minutes or more are attributed. What the five causes mean

Source: US DOT Bureau of Transportation Statistics · Data covering November 2024 – August 2026

The aircraft flying AA166 came in 15 or more minutes late on 15% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.

Matched by tail number to the aircraft’s previous flight into SFO: 587 of 590 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.

Source: US DOT Bureau of Transportation Statistics · Data covering November 2024 – August 2026

AA166 pushes back an average of 30.0 minutes late and reaches the gate at JFK an average of 22.6 minutes late. The 7.4 minutes between those two figures are slack the published schedule already carries, so a late pushback is partly, not fully, made up before the gate. Its 22.2 minutes on the taxiways at SFO is about what any departure from the airport in that hour spends.

On arrival at JFK, AA166 spends 12.9 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 1.5 minutes longer than a typical JFK arrival (11.5 min).

Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 33,787 SFO departures. Taxi-in is landing to gate, set against 360,684 arrivals at JFK. More on taxi time.

Source: FlyerIntel analysis of US DOT BTS data · November 2024 – August 2026

AA166 is scheduled out of SFO at 1:17 PM, in the 1 PM–2 PM bank. Departures from SFO in that hour arrive on time 73.2% of the time against 78.3% across the airport’s whole day — the slot alone is worth 5.1 points worse before anything about this particular flight is considered.

Both airport figures cover every destination from SFO, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.

Source: FlyerIntel analysis of US DOT BTS data · November 2024 – August 2026 · Hours below 120 departures are not scored.

The figures above describe only SFO → JFK, the route AA166 flies now.

Source: US DOT Bureau of Transportation Statistics · Data covering November 2024 – August 2026

Among the 9 departures listed, AA166 has the lowest on-time rate, 21.1 points behind the best. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.

• DL405 SFO→JFK Delta Air Lines on the same route, departs 7:00 AM, on time 89.0%
• B6816 SFO→JFK JetBlue on the same route, departs 6:00 AM, on time 83.4%
• AA276 SFO→JFK American Airlines on the same route, departs 10:30 PM, on time 88.3%
• AA2414 SFO→PHX American Airlines flight out of SFO, SFO to PHX, departs 9:15 AM, on time 85.2%