Likely delayed: there are delays at AA 166's airports as of 6:43 PM ET. It arrived on time 54.9% of the time in June-August 2026. When it was late, the average delay was 1h 14m. 3.3% of flights were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
In the air
In the air, scheduled out of SFO at 12:10 PM.
In the air: 35,000 ft, 506 kt, A321 (N106NN). Live map
Cancellation risk: High 3.3% of its flights were cancelled in June-August 2026; SFO has major delays.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check American Airlines for official times. Live position: adsb.lol (open data, ODbL).
Book a backup seat SFO → JFKThis flight is cancelled often; a refundable backup costs little
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SFO → JFK San Francisco, CA to New York, NY | 12:10 PM → 9:00 PM | 55% |
Local times. Schedules change; check your booking.
How reliable is AA 166?
| Arrived on time (within 15 min) | 54.9% |
| Average delay when late | 74 min |
| Cancelled | 3.3% |
| Diverted | 7.6% |
| Flights tracked | 92 |
Best and worst days to fly AA 166
AA 166 was most reliable on Tuesdays (80% on time) and least reliable on Mondays (36%).
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by American Airlines to the Department of Transportation.
Other flights SFO → JFK
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the American Airlines app.
American Airlines delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is AA 166 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:43 PM ET. For this flight's gate and exact status, check the American Airlines app.
Is AA 166 usually on time?
AA 166 arrived within 15 minutes of schedule 54.9% of the time in June-August 2026, with an average delay of 74 minutes when late.
How often is AA 166 cancelled?
3.3% of AA 166 flights were cancelled in June-August 2026.