Delta Air Lines DL3991 Flight Status
Based on real-time data from Trip.com, flight DL3991, operated by Delta Air Lines and scheduled to fly from San Francisco (SFO to Seattle (SEA), has been cancelled. Please contact the airline or airport counter for the latest information.
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Cancelled
Please refer to the airline for the latest information
2h 21m
Check-in Counter
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Boarding Gate
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Arrival Gate
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Baggage
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DL3991 Aircraft Details
Plane model info unavailable
Punctuality (Departure)
57
%
Punctuality (Arrival)
87
%
Late on average
23 minutes
Age
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Seats
--
Distance
--
Economy
Onboard Amenities
Unknown
Unknown
Unknown
Unknown
Seating Plan
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Legroom
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Seat width
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Reclining Angle
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Seat layout example
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DL3991 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of DL3991 is 57% (Late on average 32 minutes), and the on-time arrival rate is 87% (Late on average 23 minutes).
On-Time Departures
Punctuality
57
%
Late on average
32 minutes
Early
0
%
On time
57
%
30 mins late
23
%
60 mins late
17
%
90 mins late
3
%
Cancelled
0
%
On-Time Arrivals
Punctuality
87
%
Late on average
23 minutes
Early
60
%
On time
27
%
30 mins late
10
%
60 mins late
0
%
90 mins late
3
%
Cancelled
0
%
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Frequently Asked Questions
What is the current status of flight dl3991?
Flight dl3991 has been canceled (status: Cancelled). Contact Delta Air Lines or your booking channel for rebooking or refund (updated Nov 5, 2026).Is flight dl3991 on time today?
Flight dl3991 has been canceled (status: Cancelled). Contact Delta Air Lines or your booking channel for rebooking or refund options; if booked on Trip.com, use Manage Booking.What route does flight dl3991 fly?
Flight dl3991 is operated by Delta Air Lines from San Francisco (SFO) to Seattle (SEA). Typical flight time is about 2 hours21 minutes; operating days may include Thursday.How can I check real-time status for flight dl3991?
Track flight dl3991 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight dl3991 is delayed or canceled, what should I do?
If dl3991 is delayed or canceled, first confirm the latest status here (Cancelled, updated Nov 5, 2026). Contact Delta Air Lines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight dl3991 departed from San Francisco?
Flight dl3991 has been canceled and did not depart from San Francisco (SFO). Contact Delta Air Lines or your booking channel for next steps.
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