Likely delayed: there are delays at DL 691's airports as of 6:46 PM ET. It arrived on time 46.7% of the time in June-August 2026. When it was late, the average delay was 1h 12m. 2% of flights were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
Likely delayed
Leg 2 of 3 (SFO → JFK): Likely delayed: SFO has major delays (wind, max 5 hours and 41 minutes). Scheduled to leave at 1:00 PM local time.
Cancellation risk: Medium 2% 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 Delta for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SEA → SNA Seattle, WA to Santa Ana, CA | 10:05 AM → 1:05 PM | 83% |
| SFO → JFK San Francisco, CA to New York, NY | 1:00 PM → 9:54 PM | 41% |
| SNA → SEA Santa Ana, CA to Seattle, WA | 2:02 PM → 4:59 PM | 83% |
Local times. Schedules change; check your booking.
How reliable is DL 691?
| Arrived on time (within 15 min) | 46.7% |
| Average delay when late | 72 min |
| Cancelled | 2% |
| Diverted | 4.1% |
| Flights tracked | 98 |
Best and worst days to fly DL 691
DL 691 was most reliable on Tuesdays (73% on time) and least reliable on Thursdays (23%).
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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 Delta 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 Delta app.
Delta 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 DL 691 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:46 PM ET. For this flight's gate and exact status, check the Delta app.
Is DL 691 usually on time?
DL 691 arrived within 15 minutes of schedule 46.7% of the time in June-August 2026, with an average delay of 72 minutes when late.
How often is DL 691 cancelled?
2% of DL 691 flights were cancelled in June-August 2026.