OO3991 Flight Status SkyWest Airlines: Seattle to San Francisco (SKW3991)

SkyWest Airlines OO 3991

Landed On Time

SEA Seattle

Scheduled
17:55
Actual
18:22

Gate: B4

Departure: Sun, Nov 8, 2026 · local time PST

Seattle Tacoma International Airport (SEA)

All SEA Departures >

SFO San Francisco

Scheduled
20:18
Actual
20:20

Terminal: 1 | Gate: C4

Arrival: Sun, Nov 8, 2026 · local time PST

San Francisco International Airport (SFO)

All SFO Arrivals >

Landed 9h 44m ago 100%

SEA 18:22 SFO 20:20

1,093 km (679 mi) flown

Route map SEA to SFO Map of the great-circle route from Seattle Tacoma International Airport, United States to San Francisco International Airport, United States, 1093 km. The plane shows an estimated position based on departure and arrival times. Map data: Natural Earth. SEA SFO Map data: Natural Earth

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 1093 km / 679 miles · Scheduled Duration: 02:23 · Actual Duration: 01:58

OO 3991 Flight Status & Schedule SkyWest Airlines Seattle to San Francisco

Date From To Departure Arrival Status Details
Nov 08 SEA SFO 18:22 20:20 Landed Track >
Oct 30 SEA SFO 18:22 20:16 Landed Track >
Oct 29 SEA SFO 18:22 20:19 Landed Track >
Oct 28 SEA SFO 18:17 20:07 Landed Track >
Oct 27 SEA SFO 18:09 19:51 Landed Track >
Oct 26 SEA SFO 18:26 20:12 Landed Track >
Oct 25 SEA SFO 18:08 20:00 Landed Track >
Oct 23 SEA SFO 18:20 20:06 Landed Track >
Oct 22 SEA SFO 19:02 20:56 Landed Late Track >
Oct 21 SEA SFO 19:31 21:22 Delayed Track >

SkyWest Airlines' Seattle–San Francisco flight covers 1,093 km (679 mi) and runs once a week, on Sundays. With 2 h 23 min in the timetable and a usual flight time of about 1 h 50 min, it often makes up time. Yesterday it left 27 minutes late and still landed at 20:20, just 2 minutes behind schedule.

< All Seattle SEA Departures All San Francisco SFO Arrivals >

About OO 3991

Route
Seattle Tacoma International Airport SEA to San Francisco International Airport SFO
Distance
1,093 km (679 mi)
Typical flight time
1 h 50 min
Flies
Sun
On time
8 of the last 9
Average delay when late
38 min

OO 3991 FAQ

How long is the OO3991 flight?
The timetable allows 2 h 23 min. Seattle to San Francisco is 1,093 km (679 mi).
How often is OO3991 late?
1 of the last 9 flights arrived 15 or more minutes late; when late, by 38 minutes on average.
Which days does OO3991 fly?
Once a week, on Sundays, based on the schedule of the last 7 days.
Which terminal does OO3991 use?
It usually arrives at Terminal 1 at San Francisco International Airport (SFO). Check the flight card above for today's terminal and gate.
What other flight numbers does OO3991 have?
Also listed as SKW3991 (SkyWest Airlines' ICAO code) and OO 3991.

OO3991 and Seattle SEA to San Francisco SFO Flights

Flight OO3991 is code-shared by 2 airlines using the flight numbers AF2251, VS3214

Other flights departing from Seattle SEA: DL870, DL1165, DL2256

Other flights arriving at San Francisco SFO: UA1722, DL2197, AS503

All flights connecting Seattle SEA to San Francisco SFO.