Delta Air Lines

DL3991 Flight Status

According to Trip.com real-time data, the DL3991 flight operated by Delta Air Lines on Mar 20, 2026 is scheduled to fly from San Francisco (SFO) to Seattle (SEA). The flight is expected to depart at 7:29 PM and land at 9:48 PM .

Fri, Mar 20

SFO-SEA

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Scheduled

Your flight will depart on time.

San Francisco(SFO)

7:29 PM

Scheduled: 7:29 PM, Mar 20

San Francisco Intl. Airport T1

2h 19m

Seattle(SEA)

9:48 PM

Scheduled: 9:48 PM, Mar 20

Seattle Tacoma Intl. Airport

Check-in Counter

Boarding Gate

Arrival Gate

Baggage

Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline. If this is not your flight, you can browse more options for flights from San Francisco to Seattle to find your schedule.

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DL3991

DL3991 Aircraft Details

According to Trip.com real-time data, the DL3991 flight flying from San Francisco to Seattle on 3/19/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 6y, 7m. The aircraft is equipped with 76 seats.

Embraer 175

Punctuality (Departure)

80%

Punctuality (Arrival)

97%

Early on average

15 minutes

Age

6y, 7m

Seats

Flight Distance

Economy

First

Premium Economy

In-Flight Services

Snacks

In-flight entertainment is unavailable

Wi-Fi (additional charge)

Power outlet

Seat Information

79 cm

More legroom than on 21% of flights

46 cm

Seat width better than on 90% of flights

100°

Reclining Angle

2-2

Seat layout example

In-Flight Services

Meal included

In-flight entertainment is unavailable

Wi-Fi (additional charge)

Power outlet

Seat Information

94 cm

More legroom than on 31% of flights

51 cm

Seat width better than on 8% of flights

135°

Reclining Angle

1-2

Seat layout example

In-Flight Services

Snacks

In-flight entertainment is unavailable

Wi-Fi (additional charge)

Power outlet

Seat Information

86 cm

Legroom

46 cm

Seat width better than on 86% of flights

120°

Reclining Angle

2-2

Seat layout example

Flight History for DL3991

Check more records from Trip.com about DL3991 before and after today

Date	Airport		Aircraft Model	Departure	Arrival	Status
Date	Departure	Arrival	Aircraft Model	Departure	Arrival	Status
Fri, Mar 20	San Francisco (SFO)	Seattle (SEA)	E7W	7:29 PM	9:48 PM	Scheduled

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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 80% (Late on average 19 minutes), and the on-time arrival rate is 97% (Early on average 15 minutes).

On-Time Departures

Punctuality

80%

Late on average 19 minutes

Early

On time

77%

30 mins late

17%

60 mins late

90 mins late

Canceled

On-Time Arrivals

Punctuality

97%

Early on average 15 minutes

Early

87%

On time

10%

30 mins late

60 mins late

90 mins late

Canceled

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