About 1 in 10 AA 6404 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (10%); 0.6% were cancelled. The typical flight landed 10 minutes early.
AA 6404: SFO → PHX
Scheduled to leave San Francisco at 6:00 a.m. local time, operated by SkyWest as OO 6404. Over the past year it arrived on time 90% of the time (324 flights), worse than other AA flights on the route at that hour (95%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 49 | 90% |
| Tuesday | 41 | 90% |
| Wednesday | 49 | 92% |
| Thursday | 47 | 89% |
| Friday | 48 | 90% |
| Saturday | 46 | 93% |
| Sunday | 44 | 86% |
Why it was late
All flights SFO → PHX · Connecting off AA 6404? Check the risk
Questions
How often is AA 6404 from SFO to PHX late?
American Airlines 6404 from San Francisco, CA to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 10% of 324 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.