| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 29 | SEA | SFO | 17:51 | 20:19 |
Scheduled
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| Aug 22 | SEA | SFO | 17:51 | 20:19 |
Scheduled
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| Aug 20 | SEA | SFO | 17:51 | 20:19 |
Scheduled
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| Jul 29 | SEA | SFO | 18:36 | 20:21 |
Landed
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| Jul 28 | SEA | SFO | 18:31 | 20:24 |
Landed
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| Jul 27 | SEA | SFO | 18:55 | 20:47 |
Landed Late
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| Jul 26 | SEA | SFO | 18:49 | 20:43 |
Landed Late
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| Jul 25 | SEA | SFO | 18:20 | 20:15 |
Landed
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| Jul 24 | SEA | SFO | 18:26 | 20:41 |
Landed Late
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| Jul 23 | SEA | SFO | 19:10 | 21:06 |
Delayed
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Delta Air Lines Flight DL3991 connects Seattle, United States to San Francisco, United States, taking off from Seattle Tacoma International Airport SEA and landing at San Francisco International Airport SFO.
How long is the DL3991 flight from Seattle to San Francisco?
The average flight time from Seattle to San Francisco is 1 hour and 55 minutes. The flight distance is 1093 km / 679 miles and the average flight speed is 532 km/h / 330 mph.
How many DL3991 flights are operated per week?
1 flight per week. The flight DL3991 is operated on Sunday.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL3991 Seattle to San Francisco?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL3991 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight DL3991 arriving at?
Flight DL3991 arrives at San Francisco International Airport (SFO) Terminal 1.
When was the latest DL3991 flight?
The latest flight took off on Sunday, August 30th, 2026 with the flight status being Scheduled on 20:19.
How else can the flight DL3991 be referenced as?
This Delta Air Lines flight can also be referenced as DAL3991, DL 3991, DAL 3991.
How often is flight DL3991 delayed?
On average, 60% of all DL3991 flights are delayed. The average delay is 24 minutes.
Can I get compensation for my delayed or cancelled DL3991 flight or baggage issues?
If your DL3991 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our DL3991 Flight Tracker above for more details.
Other flights departing from Seattle SEA: AS538, DL848, DL870, OO3991
Other flights arriving at San Francisco SFO: AA1842, AS812, OO3991, DL8841
All flights connecting Seattle SEA to San Francisco SFO.
